At least for me, my sex drive doesn't affect my mental health at all. It's when I get rejected by my wife once, twice, three times ... and so on. After going a month without sex, I start to feel horrible because I basically just have a roommate that steals the blankets and won't play video games with me. And I don't care what everyone says about not taking it personal either because it's me that's getting turned down, not a whole collection of people. So it's darn personal. When someone stabs you in the back, it may not be personal but it sure hurts like %$#@.

I definitely third the marriage counseling and you both need to work on compromise. In my case, I would love at least once per week, but would settle for every two weeks whereas the wifey could pretty much care less if it ever happened again. So we have to meet in the middle and that's something you and your spouse have to compromise about as well; a little less often than you want and more often than she wants. Without that, things are just going to go from bad to worse.