So for context I (m18) met this girl (f18) at the club and we played pool and talked about how our degrees are going and things like that but before I left she told me we should play some pool later when we got back to uni.

Fast forward a bit and I am talking to my mate about her and he gives me her snap but also tells me she has a bf and to be wary of that.

So we go out to the games room and played pool (same night) so we were there until about 2 in the morning and I said did you just want to go back to mine to which she only then told me herself that she was in a relationship so I kind of left it and said goodnight.

Anyways the next night she sends me a text asking to play pool again so I agreed and this time (also like 2 in the morning) she told me she wanted to go check out my room and so I took her back to mine and we talked for a few more hours and eventually hooked up (didn’t fuck) but basically everything else.

Anyways I feel super bad for her boyfriend now even though I didn’t initiate anything. Every now and then she tells me it was so good and stuff but we haven’t done anything since.

Am I TA?