What should I do

I was hanging out with My boyfriend and We definitely had the intent to do stuff(sexual). And we did and I was okay with that until later on he kept asking to do it again and again. I said no not now about 4 times in a time span of maybe 2 hours. I finally caved in and said yes “but only this time” and he agreed one more time. But a little later he asked once again and I said no. He actually got on top of me and was like “I want you to know Im not going to do anything without you saying yes to” followed by “but i cant help myself around a beautiful lady like you” and proceeded to try to get on me and I actually put my hands to cover my private area to let him know I mean no. Which he still asked after. I don’t know how to honestly feel about this but I physically and emotionally can’t say anything to him about it because I really like him and don’t wanna ruin anything.