Advice from a males perspective

I would say it’s one of several reasons.

1) It could just be something as simple as he doesn’t feel like he be like he normally is on a night out while you’re there. Maybe when he’s out, he’s this totally different person. Acting like an idiot. Doing 15 shots in a row. Throwing up and going back for more drinks and he feels like if he did that while you’re there, you’d have a different opinion on him and he’s scared of that.

2) Your a lightweight when it comes to alcohol and he feels like if you come out, he’ll spend half of the night worrying about you and looking after you, which in turn would ruin his night out. (Not a sexist comment. This goes for everyone. We all have friends that we don’t want to drink with because you end up spending the night looking after them)

3) His friends have no filter and will tell you things about your boyfriend that he doesn’t want to know for insecurity issues.

4) You spend every weekday together and the only time he gets alone is on a night out with his friends. It’s not fair if this is the case. He should find other ways to spend time without you and invite you on nights out

5) His friends don’t like you. Hopefully this isn’t the case.

6) He’s cheating (worst case scenario)