I don't like it when my boyfriend drinks?

OK so obviously I'm not a huge drinker. I actually like drinking, but I always control myself. But my serious boyfriend (8 months) drinks like every week. We know that we are not allowed to drink or go to parties that have the opposite sex around. It's easy for me to say it because I don't go drinking very often. Whenever he asks what I'm doing, he tells me how he's seeing family and stuff. But whenever he does that, he usually texts me later on in the day for a short while telling me he's drinking (he texts drunk) with his friend of or whatever, but he never tells me where he is.

I always feel uncomfortable about my boyfriend doing this. Even though he tells me he loves me all the time. (Earlier on in the relationship, I caught him saying things to girls he shouldn't be saying etc, but we have fixed that about a month ago). I just feel weird about it and hope he won't ever cheat on me or something.

How can I trust him more when he's drinking without me?
I don't like it when my boyfriend drinks?
Post Opinion