Cat, I gotta believe if you can give your husband what he needs, then he will want you.
I like the Just Do it advice.
Also you have to stop beating yourself up. It's not all your fault. Ok, you had low desire. But he didn't help you through it.
I am a man with a low-desire partner, and while it is easy for me to blame her, in honestly I have to accept my part in it. It takes 2 to tango. I saw her LD but just expected her to "fix it" but I didn't romance her, I didn't help her, I didn't show her how I could help her do it.
I don't believe it is "only your problem." Work on it together. (Gently)
M 43 S14 S13 D11 D7 Divorce final: Jan 2009 Making it up as I go....