I fell in love with this guy, we've been talking everyday for a month. I don't want to tell him as I know he just sees me as a friend, plus I don't want to be in a relationship. He's becoming cold this past few days, He got drunk and told me that he doesn't know what to reply and he apologized as he doesn't share the same energy with me. I'm thinking of ghosting him as he makes me sad. Should I? I know it's bad to ghost people but I think I'm annoying him. I think we're better off.

yes

Hi to expand (2)..
Though I do not know the full context and would be at a degree presumptuous of me but since you have sought for an opinion then I would like to lay out that I will always mean well for everyone.

I understand that such instance (confession or similar) could really change everything in a certain relationship (or friendship). It is not something that once done can never be forgotten or be pretended as if never happened. In the shoes of your friend, IMO the inability to return the feelings will continue to haunt him with either guilt or failing to set clear boundaries etc. and being with you is the constant reminder of his failing to return the favor. It would be beneficial for your friend to free him from that haunt or constant reminder of his inability to return the feelings. This is my assumption with his change in attitude to as you described "cold" with clarification that the confession is the driving force.

However, considering your feelings, I do believe that even if your confession is unrequited you would still like to keep your good friendship however with him being cold seems like is far from occurring. As it is something (confession) that we cant pretend that did not happen. However, in my question, is your friendship with him really such thin to be broken by that? I experienced the same thing with my X-bestfriend and unfortunately everything changed and our relationship demoted to friends from X-bestfriends to friends but hey were still friends... or so we would like to believe though we are more of acquaintance at this point.

I only laid some probable unseen stories or viewpoint, I do not know the full story and still leaves the decision to you. May you find this opinion even a bit helpful and I mean you well.