<human>: Hello! I'll try and make this as short as possible, I just feel quite uncomfortable with the situation and I hope I'm just being silly and can find a way to just look past it.

A month ago I started medical school and it consumes a lot of my time so unfortunately my boyfriend and I don't get to see each other as much as we used to (even though we live together!). Recently some coworkers of his came here to work for the winter season (a couple) again and he went to hang out with them as he hasn't seen them in a while, fine by me. 

The part that bothers me, is that he spends a lot more alone time with the girl than with me and they do things that we initially as a couple were gonna plan on doing. That bugged me but I know I'm not around much so I thought it was just somebody to hang out with and that's it but then a few days ago we all went out together and it's always just them talking and I noticed there is a "click" there, so after we got home I spoke to him and he admitted he is attracted to her, that she is very pretty but that isn't why he hangs out with her and I have nothing to worry about.

I know I most likely have nothing to worry about, but that comment annoyed me. I'm probably just comparing it to how I would act in that situation I guess...if I was hanging out with somebody I was attracted to, spending more time with them that with my partner and having outings that I would usually have with my partner...I would step away because I would feel like I was acting upon certain feelings.

He thinks I am being very silly and overreacting, but I can't help but feel uncomfortable. Everytime I'm done with class and tell him I'll be home soon he says "oh you finished early, I'm with (girl), I thought you'd be later". What should I do? Just trust him and move on or is it normal for me to feel uncomfortable?

Give me the gist of the text in a nutshell
<bot>: Boyfriend hangs out with a friend more than me and he admitted he is attracted to her. It makes me uncomfortable, am I being silly?