I vented some about this with a friend last night, but I'll go.

My best friend has a girlfriend that he really loves, they're great together, whatever. But he's also pretty touchy feely generally, which like, whatever, but it becomes important.

Our other friend asked him out before she knew that he had a girlfriend, early last year. He continues to be his touchy feely flirty self with her. In general, there are quite a few people who have demonstrated interest in him that he just keeps entertaining, and I'm not even sure if his girlfriend is aware of it (she lives a few hours away).

I had a crush on our other friend (still kind of do, working past it), and he has a hot girlfriend who isn't her, but when just the 3 of us hang out it feels like I'm fucking 3rd wheeling. It feels unfair? Like, he shouldn't get to have as close a relationship with her, to the exclusion of our friendship, while also having a girlfriend that's great and he talks about marrying. It sounds petty, and it probably is. But it pisses me off.