AITA???

My ex and I reconnected . I already told him we would never be able to get back together but we could try to be friends as we used to have a lot of fun together and it’s been years since the break up. I’m 22, he’s 20. Yesterday I found out that he drinks like everyday and he has a DUI and he told me how much of a “learning lesson” it was for him.

We were supposed to go out to eat , and he sent me this text. He’s underaged , so obviously I do not feel comfortable buying him alcohol where he’s going to be driving after . After he kept pushing after I already said no and felt uncomfortable, I finally just cancelled the plans and said I didn’t want to go anymore and I was going to go out with my friends instead. He got angry saying I was weird as fuck and I ruined the night because we were going to have a good time .