Opinion an advice

Okay so my boyfriend he’s been with a a lot of girls in his past I mean ALOT and when he wants to have sex I don’t and I tell him no multiple time and he don’t listen and just keeps saying yes we are we are and I tell him no I don’t want to then just give into him so he’ll stop and I’ve said sum to him before a couple weeks ago like I feel everytime I come over that’s all u wanna do and I just wanna hangout blah blah and he says it won’t happen again I promise then it happen again and I came home thanksgiving and cried bc I feel I get token advantage of and it emotionally upset me I just need someone options and help or advice on how you guys think and what I should don