Selfish or Justifying

Okay, so my boyfriend and I have been together for almost two years. I am always very generous and give him head every single time before sex. Tonight I've had enough! He literally promised to have sex right after because it's been a week!! We are a young couple so we should be having sex like all the time right? Wrong; we both work a lot in order to pay for our home and everything else we need but still we try to work in sex. Unfortunately that means that I literally never get to get satisfied because he always gets head and then hops on me for the time he needs to get off and then goes to shower. He doesn't give head because he says that vagina slime is gross to him and literally makes him feel sick. I mean I totally get that because not everyone is going to be into it. So I excused it and accepted the fact that I will never be gone down again. But at least fucking have sex when you promise you are. Am i seeing it all wrong? How should I address it without being too harsh? Please someone help.