Is it wrong I don’t wanna have sex?

So I’m 16 and I just broke up with my 17 year old boyfriend. For some context my ex was a virgin and we were dating since my freshman year. I’ve always been very comfortable in my body as far as sex goes and he was aware from the beginning that I’m not a virgin. Overall he was a decent first serious boyfriend I mean he had his faults ( immature and high 90% of the time) but he never rly treated me badly. As far as our sexual side of the relationship goes, we frequently made out and after like 3 months in the relationship there was oral involved but I never felt comfortable sleeping with him. He would always ask when I would be ready and id feel bad and tell him I’d be ready in 2 months and then the time would come and id keep putting it off. After the 7 month mark he would basically act drunk every time he got high and try to have sex and id turn him down and he’d get pissed off but then the next day act like he didn’t remember it. I finally grew tired off it and now ultimately can’t stand him so I broke up with him about 3 weeks ago for the first time and told him how I felt. He told me he was gonna kill himself if I left him and asked if we could just be on a break rather than completely broken up so out of guilt I agreed. After about a week of our “break” I officially decided to completely break things off and he told me no, I avoided him so hard but he has been basically stalking me and everything he sees me he comes up and kisses me and I slapped him yesterday and everyone is calling me a bitch.