Sex Advice?

Me and my boyfriend are taking a break from sex after a strain in our relationship that we're working through. I'm a very sexual person and I want to be fine with that and I tell him it's okay, but it's taking a bit of a mental toll on me. Because he's the one that wants the break, there's always a little voice in the back of my head that tells me he hates the sex or he thinks I'm disgusting, etc, even though I know he loves me. I don't want to lose this guy. I don't want him thinking I'm only in this relationship for sex, that's why I tell him it's okay. We're in a LDR too so it's not like we get to see eachother often. I told him it's up to him when he wants to have sex again, but who knows how long that will be. It hurts and I don't really want to convey this to him yet, but I'm not sure what to do.