<human>: Give me the gist of the text in a nutshell

My boyfriend and I have been dating for 8 months. Kind of. It started off very confusingly as a fwb situation and I guess feelings happened although I don't really know when he started calling me his girlfriend in his head. Anyway the point is that, while I appreciate his honesty on most occasions, he has crossed the line and told me information I really don't need to know multiple times. 

For example, how "banging hot" my older sister is, how he slept with and had an emotional connection with this girl I know, etc. I know he isn't trying to hurt me as he's very caring but these things are rubbing me raw, as are his half hearted apologies. "I've said sorry and that I won't do it again babe, what else am I supposed to say?"

Clearly, he hasn't really changed. He blurts out inappropriate things all the time, especially when drinking. He never really thinks it's wrong (beside the fact that I'm hurt - which he says are because of my insecurities NO SHIT OF COURSE THEY ARE) but I think it's because I've never been dumb enough to tell him things he doesn't need to know. He's kind of desensitized by an ex cheating on him multiple times that I doubt I could say anything truly mean enough to get through to him that it's not ok to say anything and everything you want to someone you care about. I also don't want to be mean to him.
<bot>: Boyfriend says a lot of dumb shit that hurts my feelings and is starting to make me really insecure. Not sure how to tell him anymore that there is some shit I don't need to hear.