It’s less an issue of sex drive and more an issue of simply not having much time together when we aren’t exhausted. We both work two jobs, and we basically don’t see each other at all (at home and awake) from Tuesday afternoon until Sunday afternoon. That said, I think the problem you describe is probably normal for relationships with age gaps. Hell, it’s normal for most relationships, I think. I certainly jack off more than my husband does, but I don’t really crave physical sex all that often. *Shrug* It’s just never been that big of an issue for us, at least.