Lower sex drive then me

My bf and I have great sex and are really close, but my sex drive is much higher then his. Sometimes I'll give him multiple blowjobs in one day because I'm always horny and he's not that in the mood (like doesn't want to have sex but is fine with BJ's). We do have a BDSM dynamic and have been together for over 2 years. I've never experienced not wanting to have sex with him when he does. He has told me he thinks he's a little bit asexual but doesn't really know for sure, but I still have often wondered if my sex drive is too high.

Can anybody give me some advice?