Relationships

Am I loosing interest in my boyfriend? should I break up with him or stick it out?

So me and my boyfriend have been dating for 4 years since 8th grade, I’m a senior now about to graduate. I still love him but I don’t think I’m in love with him. For example, I don't care anymore what he does or who he’s with, Things that used to brother me don’t anymore. I don't ever really think about him only when he texts first and I don't know how to ever respond because I don’t care. We were on vacation together and all we could do is fight, I noticed I wasn’t physically attracted anymore everything he did I hated. I feel Awful because he’s on a completely different page then I am about the relationship and always says he’s so lucky to have me. I don't even want to hang out but i feel obligated to stay in this relationship as he is depressed, barely making it through school as it is and has druggy neighbors that I feel like he would start to be more risky with what he takes and I still care about him I don't want anything bad to happen. I don't Know how to tell my parents either if I break up with him because he has always been around. Please give me some advise I feel so stuck and don’t know if I should wait till after we graduate and see how I feel then or should just breakup. Also side note his birthday is in about 2 weeks.
Am I loosing interest in my boyfriend? should I break up with him or stick it out?
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