There is a guy I’ve known for around a year now- he runs a professional group that I joined. When we first met, I fancied him and thought there was chemistry and that he maybe liked me too, but I wasn’t sure. I’m also not good at expressing emotions and every time he asked me to go do things with him I’d say no and be kinda distant because I didn’t want to disappoint him if I spent more time with him (I’ve never had a serious relationship and am not great with these things!). Around the time we met, it was a running joke in the group that he loves going on dates and he’s a very extroverted person, so I knew he was dating people, but he never explicitly asked me out. A few months later I was kind of seeing a different friend, and I pretended to the original guy that it was more serious than it was so it would seem like I had options and wasn’t just crushing over him. Around this time, he started getting more serious with one of the girls he was dating. Fast forward to now, they are still together, he has met her parents, they are relatively serious. However, whenever we go out together and he gets drunk, he flirts with me (being touchy feely, lots of eye contact, etc) if his girlfriend isn’t there. Recently we went to a party just the two of us (we were meant to be meeting other friends but they didn’t show up) and his girlfriend didn’t come. We were both quite drunk and as usual he was being very flirty, he told me he fancied me when we first met, kept putting his arm around me, jokingly said he thought we’d be a good couple (I replied haha no). Everyone we met thought we were a couple. He also said he didn’t believe in relationships anymore and was hinting he was having issues with his girlfriend, but they are definitely still together. I would never actually do anything with him since he has a girlfriend, and I don’t want to hurt anyone, so I left the party early. But it is really hard not to flirt back with him when I’ve had feelings for him for nearly 1 year now. I don’t know what to do- should I leave the group and cut off all contact with him since he has a girlfriend? Should I say how I feel? Should I wait it out to see if they break up? It’s just really depressing for me to have to see him with his girlfriend, and hear him talk about her sometimes. I also think I would loose touch with our mutual friends if I decided not cut him out, which is sad. But I’m not sure I can carry on like this.