does he want to or does he not ?

So my relationship with my boyfriend it's been off and on we have been having so much problems and every time he tells me "so what do we do " like saying if we r going to break up I tell him "idk it's up to you what ever you wanna do " he says " well idk you decide " and I tell him " think about it and let me know " he tells me " you too " or if I'm telling him that we should end this here he always brings up our little angel who we lost and makes me feel bad and sad and I keep staying with him or he says "r u sure u want to break up " idk if he really wants to be with me or not or why he dies that 😩 we have been dating for almost 2 years I'm 18 he's 21