relationship advice

i have this boyfriend and we will be one year in the next week or so but we are on another break brought upon by him. every time i try to talk to him about us getting back together he just says he doesn’t know and to stop worrying about him. he knows how i feel and im so upset without him because i love him so much and every time i say i love you he says “i know”. he hangs with his ex girlfriend all time too but gets mad when i mention it because they’re just “friends” and recently i noticed he took down our photos on his instagram profile and when i mentioned he just said he was high. i think he doesn’t wanna be with me but when he notices me talking to other boys he gets mad at me or when im upset about something other than us hes there. idk what to do with him anymore because i dont wanna lose what we had help me🥺🥺