You're asking an HD female if it's all good?! hee hee, I believe you know how I'm gonna answer that one..
What I'm saying, though, is that there is a possibility (in my mind) for sex every single night. He seems to think of it only when the "regular" nights are different somehow. We get to bed earlier, or our kids are gone, or he can't sleep..there is some changeup in the routine that sparks some interest in him.
I do think that novelty plays a BIG role in the sex drive of the LD partner. Little changes seem to 'throw' my husband more than me, as I am wayyy laidback. He likes routine, but this same routine can often lull him into behavior that hasn't served him well in the past. (such as ignoring his wife) It is a bit of a catch 22 for the both of us: I like change but seem to be a better partner to him when forced to adhere to a routine; he likes routine but is a better partner to me when forced to shake it up once in a while.
Unfortunately we are married to each OTHER and there are not many opportunities to be both carefree and routine all at the same time!