Ok for sake of privacy I’m going to refer to them as A and B

I have been in a very close friend group of 6 people but I’m especially close to A, we seem to be blueprints of each other, we think the same, we love the same music, movies, books, etc. , she is an amazing listener and absolutely beautiful. A few people in my group and I have always had a sort of friends with benefits type relationship so making out with them at parties and so on was the norm ( including A and B).

About two months ago I started feeling really clingy about A and every time I thought about her I got happy. But here’s the thing, B has always been the type of person to say things like “who’s hosting the next party, I am in the mood to make out with you all” or along those lines but in the last few weeks they have been saying “I can’t wait to make out with A again”, and small things like that. Last week they ever said “get a room” when A flirted with me… which has never happened before. So it’s glaringly obvious that we are both in the same situation and I am starting to resent them for it but I desperately don’t want to because they are one of my closest friends. None of this has been communicated in the group because we all made a deal to never date within the group. I hate that I’m smitten with A and I hate that I’m jealous of B’s boldness with their words.

I bet a while down the line I’m going to look back in retrospect and laugh at the triviality of my problems but this has been sitting on my chest for a while and I would love another opinion.