Give a little, get a little

Okay so my boyfriend absolutely loves getting blowjobs. He wants them every time we have sex, and a lot of the time he just wants them randomly too. I'm to the point where I've given so many blowjobs now that I'm pretty tired of it, but I still do it just because I want to please him. However, not once has he ever gone down on me. He says it's gross and he doesn't wanna do it. So I guess my question is, is it wrong that I'm starting to get a little irritated by this? Isn't it double standard as hell? Shouldn't he wanna do things to please me too?