Oral sex

My boyfriend loves oral sex and wants me to *cough cough* swallow, which I hate but he feels is mandatory. Once I spit it out on him and refused to get him something to clean it up with, he got so mad at me he couldn't even look at me. I love him with all my heart but cum is really disgusting and he says he'll go further down so I won't taste it and it'll just go down my throat but idk what to do, I want to be able to please him but this just isn't something that I'm into. Did I mention he's white? So yea he thinks I should be so willing because of stereotypes for black girls.