i feel like i’m staying because it’s familiar.

i (17) have been with my bf since we were 13. i love him and don’t necessarily want to leave but i’m having doubts about staying as well. he’s broken my trust in the past but i forgave him since it felt silly holding onto it since we were like 14 when it happened. there’s times he’ll treat me so amazingly and i feel so incredibly loved and i’ll forget every bad thing that’s wrong with our relationship but then it goes away and our relationship feels shitty and he makes me feel like i’m not good enough for him. i just feel like at this point i’m just holding onto the memories we’ve had as well as the times he is amazing to me. it’s like i’m basically just hoping our relationship changes with time. i’m not sure what to do.