I don't come

So me and my boyfriend have been together a year and 4 months and everything is amazing, including our sex life. We have sex (oral included) quite a lot and I always manage to make him come. But he never seems to do it for me. I don't always mind it, I honestly love being able to get him off and seeing that look on his face. The question I have is, is this right? For him to always get a great finish whenever we have sex and me to just be left hanging? Let me know and thank you.