Not attractive anymore?

Does anyone ever feel like their SO isn't attracted to them anymore?

We don't have high sex drives, or if we do it seems to be opposite of each other. Lately I've been horny, and I've been throwing it out there (ex- I sent him lingerie pics while he was at work yesterday) and get nothing (ex- he was changing from work when I got home yesterday, so he was naked and still didn't tell me to come here) :( needless to say I'm frustrated, and just needing to vent