Should I Dump Him?

I started dating my boyfriend at 13. On 2-4-15 we started dating. He was 14, we dated for 10 months, within those 10 months he was cheating on me by flirting with other girls more than 10 girls , then I dumped him and he date another girl for a week. And then he dumped her cause he missed me and didn't know what he wanted. We both didn't date for awhile, and stayed friends, figured out what we wanted. We starting talking and talked for about 5 months, I was loyal and he kissed another girl (she kissed him he said and he doesn't like her), I ended it, then started dating again 12-22-16 , im 16, hes 17 we've now been dating since then for 6 months. Everything has been good, no cheating at all, he gives me permission to go on his phone, but I'm not that type of girl.

Latley tho, he got a job in May and works alot. And I understand that. But when hes not busy, he will ignore me. He went on vacation and his niece told me he was looking at lifeguards and stuff. He also went to camp and the girl he kissed when he cheated on me when we were talking was there. I know her, she said nothing happened...he also lies sometimes about what he's been doing... He doesn't reply sometimes for hours - days even when he's not working!

I tell him it bothers me and he just says hes busy.

I honestly feel Like he uses me for sex. He never replys , when he does he takes forever. We barley hang out anymore and when we do he wants sex or his friends has to be with us. We haven't had a night alone in 1 month.

I just don't know what to do...i feel like he doesn't want me . I thought he changed but then I just got told this the other day...

UPDATE: I DUMPED HIS ASS & HE STARTED DATING THE GIRL HE SAID I SHOULDNT WORRY ABOUT😂 3 years wasted