Separated and reunited, sex life is over?

My husband and I separated for a few days. When he left he insisted it was permanent. There was nothing that I could ever do to change his mind. It was a long time coming and he was sorry to just spring it on me but there was nothing we could do the marriage was over. He said he was not in love with me anymore and hadn't been for some time - more than a year and that he also had lost all respect for me. He said he never wanted to have sex because he didn't have those feelings for me. After about 5 days he came home. He said he didn't mean any of what he said and he missed me etc. I have not asked for sex. I actually don't want it. From him, anyway. He brings it up and I say nothing but we also don't have any. I just can't bring myself to be in a vulnerable situation like that with someone who in all probability does not love me and has no respect for me. I don't even know how to tell him that I don't want it anymore. I keep thinking I won't get into it because all I'll be thinking is he has no respect for me. The other areas of our marriage are fine. We're working it out but I am afraid this is going to be a huge problem when it comes out. I just can't do it. Can this be worked out? Is it something I need to work on my own with? Is it possible to tell someone all the things he said and not mean it?