Was married young & divorced after 20 years. Tried navigating thru the (very different) dating world. Dating the same lady for 2 yrs. Sex with her is better than I've ever had (that's mutual for her). There's just not enough of it. I've got a very high sex drive that's just got stronger & stronger each year for the past 5 yrs. Meanwhile, her's just keeps dropping. Unless I bring it up, sexual thoughts almost never even cross her mind.
(Wow. What a depressing introduction)