Hello there.

The text is quite long so i have to split it.
Part 1:

I am a 21 years old man and currently a student in my 5th semester. I will tell you something of my life and hope for some advices. So far I had never a relationship in my life.

Lets start from my early years in school. At this time neither love nor a relationship were relevant topics for me. I decided not to look for someone until finishing school. No girl in my class seemed to be interested in me so it went pretty smoothly.
After finishing school I was heading to the university. In the fist week I met a woman. Let's call her S. She was funny and very nice to me. I liked her and we became friends. We often talked or wrote about different topics. From my perspective I saw her as a close friend and as a person that I could ask for advices. One year passed and she broke up with her recent boyfriend after 3 years of relationship. S told me this in tears and went to another friend of her for a week or so. Some weeks later she was in a relationship with him. At this time I really doubt that this relationship was going well. She might just want someone to take care of her while she was upset. Time had shown that I was right. After a few months she became part of a conflict and broke up. After this incident she started to talk to me a lot more than the past months. (This was between the 3rd and the 4th Semester)
At this time I started to take a walk now and then. The reason behind this were that I either wanted to think about something or wanted to clear my mind. When I took a walk, I always noticed some couples walking around and I felt quite lonely. As a result I wanted to have a girlfriend as well and removed the mental wall from the old school times in my head.
In the 3rd Semester my family asked me multiple times about S. They somehow got the feeling they I might interested in her, but I didn't noticed a reason for there thinking. At the start of the 4th Semester my friends told me the same. I questioned myself if I maybe missed something but again I didn't found anything. Some weeks later I had a long talk with S about different stuff. She told me, that I sometimes said some comments which showed my interest in her over the past year. S looked quite confused after I told her, that I didn't noticed it and it wasn't intentional. After this she told me that I behaved in that way too. This really caught me by surprise. At the end of the conversation S said that she only see me as friend. I answered the same. By this time I realized that I was I blind fool. I always though that I behaved in a normal and friendly way but it was obviously not the case if all people around me were noticing this. This was the first time I ever though about “What is love?”. So far I only saw this as a strong feeling to someone but I never noticed that kind of feelings. As the time went on I focused again on studying and nothing happens.
At the end of the 4th Semester (September 2013) another female friend of mine told me again, that I really like her. She and my father recommended that I should give it a try. Nobody, besides S because I told her later about it, knew about what happened the next 2 weeks. I spent almost my complete free time to figure out what is love and if I love her. My analytic mind hindered me there. After the 2 weeks I decided that I probably love her on the basis of the following stuff: I had her often in mind and wanted to spend as much time as possible with her. And it was hard for me to say no if she asked me something. So I confessed her my love. Her answer was something like “I didn't expected that you will change your mind.”(told her to be friends 1,2 months ago)”But at the moment nothing will change for me”.

Part 2:

I would say I knew her quite well and tried to plan some stuff we could do together. But it was pretty hard because we only had one common hobby: animes. I only watched them sometimes in my free time, she watched them weekly. Anime related stuff was rarely part of our conversations.
So I went with her to the cinema, drank some alcoholic stuff together and tried to cook her a meal. I never cooked a whole meal before but the result was quite decent. In my opinion I was on a good way. But then an unlucky incident happen. (November) I was at home a weekend because I had birthday and wanted to party with my family. One friend of her didn't come to a date so she got upset and wanted to party as well. She called me and wanted to know if a could come. I couldn't, because I was at home. She found someone else and party with him. One week later she told me about this night. How beautiful it was and how much fun she had. I was happy that she had fun but some days later I became mad on her for no reason. In my opinion I was jealous (Another sign of love). I tried to fight this feeling down and it worked pretty decent. At least she didn't noticed it. The missed opportunity an the birthday weekend haunted me sometimes. At our next talk she told me, that she flirted heavily with him. Some days later we had another drink session. There S told me that he liked her too and she is possibly in a relationship with him. I knew him a bit and was happy and a bit sad at the same time. I knew that both are a good match. But now I either had to wait or had to get over her. I decided to get over her. She is like a big sister for me now.
We have at a faculty one day per month a day were students can play together some board and card games. It is always funny. The last week before Christmas was such an event. Almost all of my friends were there, even S. Later a man and a woman were joining the table. The woman is called L.
We had much fun together. I spoke with L a few minutes before I left. She play the same online game as me and gave me her nickname. I added her later and we played some games. Right before the Christmas holidays I met her on a Christmas party. We were dancing and chilling out a bit. Later we met S, her boyfriend and 2 other friends and were the rest of the party together. L was interested in one of my friends and after the party they were in a relationship. L still played with me some games and told me, that she had much fun playing with me.
The new year was close and I organized a new years party. 2 friends and S were coming, her boyfriend joined later. S told me there that I was extreme shy on the Christmas party and another guy took L away from me. She confused me a bit. At this time I didn't want a relationship with her, so I was fine that she found someone else. S said, that they already broke up and I should hurry a bit to do something with her until it is to late. I asked S whether L told her, that she want to be together with me, or not. S supposed that L didn't want to ask me but L wouldn't say no if I ask her.
So now her I am. Almost the same situation then half of a year before. I need to figure out how much I like her and if I love her. I hope I have gain some experience now and that I am not the blind fool anymore ^^

For the interested reader: I will meet L tomorrow on a LAN and next Monday on a board game evening.

Part 3:

Now I have some questions and I hope you can give me some advices :)

Would you say that my conclusion was right? That I was in love with S?

S told me that there are 3 different “feelings” for her (I agree):
1st: she love someone and would ask him for a relationship
2nd : if the person would ask her, she would say yes. Else she is fine with the current situation.
3rd: no interest
Without long thinking I would say both, L and me, have the 2nd one. I will post my conclusion later if I have one. So far would you say it could work?

I need some advices for invite a woman to a restaurant. As far as I heard from S and women in general they like it very much if you invite her for a dinner. Well I don't. I am uncomfortable to go to a restaurant and I prefer other stuff more like cinema, theater, walking and so on. I even would go shopping with them. But I am pretty nice person. I am happy when my friends are happy so I would be ready to jump over my own shadow. So here are some questions which bothers me most:
-What is the dress code if I invite her to a date in a restaurant? Should I wear a suit? Or just a shirt and jeans?
-Should a pay the whole bill? I cannot do this to often because I have not much money as a student. I know from S that she doesn't like it, if her boyfriend pays most of the times.
-I like to talk much. But I don't really now what to talk about on a date. In my case I already know L a bit. So asking about hobbies and so on is pretty unnecessary. Any suggestions?

PS: This is the first time I write on this board and English isn't my native language. I am sorry for mistakes I maybe did :). Feel free to ask me if need more information

Since there is no response to this thread, I decided to give you one. If it isn't too late. lol

So far, everything is going rather smooth for the two of you. So there really isn't much of a problem in asking her out. I was in your situation once before, afterward everything turned out well for me, and it should for you too.

Here are some answers to your questions that bother you the most.

First, the best thing for a date at a restaurant is to wear a suit. Most women consider wearing a dress when they go on a date like this one. You want this to seem like a real date, right? So why not? Make it seem special.

Second, S is right about the whole ''I don't like when people are too kind to me'' sort of thing. Some women prefer paying for their own meal because it would make them think that they aren't a burden on this. When I thought through this, I didn't want my date to pay for their own meal since I was the one who would be asking. So the best thing for you to do is to save up enough money to pay the bill. Just this once, say to L that you asked and it doesn't really bother you if you're the one paying.

Third, Ask her opinion on most things. Such as the most recent news or what she thinks of certain genres of music. Or ask her simple things like ''do you plan on going on a trip?'' Anything.

Anyway, I hoped this helped. I thought it was interesting so why not answer? Ha ha. Good luck!