I want my roommate to drink with me more
Don't you have any friends to drink with ?
I don't. An acquaintance would be better than no one.
I'm sorry that you are being quite lonely, but you shouldn't force your roommate to drink with you. Alcohol can be dangerous, and they may want no part in it. You just need to go to a bar and make new friends.
Maybe but I don't like going to bars to drink.
Maybe you can find some other ways to socialize with people. There must be tons of meetup groups in your area, you always can sign yourself up for volunteering work in order to make friends to hang out with.