Boyfriend got arrested: and I'm having second thoughts.

Hey guys, so last night my boyfriend went to a party, got hammered then drove home in his mates car that has no insurance, no MOT and no tax! And ended up getting arrested. And now I'm having second thoughts. Because I'm really, really not a drinking person. And he seemed to be growing out of the partying stage and seemed very mature, and said that all he wants now is to settle down... But apprently not! We're also long distance, and he doesn't really tell me he's going out, I just won't hear from him until fucking 4am saying he's just got home. I don't really want to break up with him because I do love him, and last time he drunk he said he wanted to marry me so... I'm guessing he feels the same as me😂 but I just don't know how to trust him, I mean if he's stupid enough to drink drive what else is he doing? I have very strong views on cheating and even making out or a one night stand is a deal breaker for me. And I now I just don't know if I can trust him enough, and I really hate worrying all the time 😔😔