To expand on the "desperation" thought... the long-term lack of a sexual partner also leads to comically extreme sexualization on my part. Like fantasizing for weeks about the trip to my female dermatologist for my annual skin checkup. Of course, I don't let on what's on my mind with her, as she's a great person who is just doing a good and valuable job. I just look at it as a plus to be able to look forward as much as I do to my dermatology exam.
It's been amusing to observe the ridiculous places my sexual energy goes when my wife wants none of it.
Like posting about sex on this forum... another form of sexual escapism, in some way, obviously. Even if I had something to say, I wouldn't even have time to be posting here if I had as much sex as I'd like.