My boyfriend wants to have sex with me but I tell him no and he gets mad at me. What should I do?

My real name hmmm I think I will keep that to myself sorry guys ! Though I can tell you that I am a 21 year old female. I play a little guitar and like to write my own lyrics here and there. One of my favorite foods is pizza and that's only one of them lol and my favorite color is green ! Anything that you are struggling with you're welcomed to follow me and I will do the best I can ! God bless !