Is it okay for couples to get offended when you all go on vacation together and you don't think its okay for then to just spend all the time by themselves. Is it okay for coupled to spend all the time on the side when you're all out together as a group of friends?

It is okay you to get offended by it and it is okay for them to stay at the side of things. Idk the details about the situation, but unless they invited you all I dont really see whats the problem. It is also fine that you get angry about it because they ruined your expectations. Why shouldnt it.

The thing that annoys me about this is that you are expecting them to make some kind of sacrifice for you, but you are not willing to do the same for them. And yes, it is normal for couples to spend more time together than with friends, duh.

Me and my best friend were arguing because we are planing a group vacation this summer with our whole group and she told me that she and her boyfriend are planning on spending most of the time locked in a room. And I don't think thats okay. Because 1. that room is not just theirs, people will always need to enter, either to get or leave something, you can't expect no one to interrupt you. 2. Why are you even coming to this group vacation if you don't plan to hang out with anyone else, why not just go alone with your boyfriend. I don't know, I just don't think it's okay to stay separate from everyone else when we're clearly planning this so we can all hang out together.