Sex...less

So...I got married last year. It's was fun, super great awesome. But in the year since I got married we have only had sex like 9 times. Yes, i keep count because there's something wrong with that! We have sex maybe, maaaaaybe once a month. Sometimes we go up to six weeks. Lately it's been never. He says "I don't know, i just don't feel anything." But then I wake up and my husband is laying beside me masturbating in his sleep. My question is, why doesn't this seem like a more pressing issue for him? Why doesn't he seem to care? What do I do? How do i survive a sexless marriage when i'm a HIGHLY sexual person?! I'm sexually frustrated all the time now and i'm trying not to take it out on him or the dog. I'm starting to have thoughts of divorce and that scared me. I need help guys.