I have always been very curious about this as I think it is very different for women.
What is it that men get out of looking/gazing at beautiful women, nude or otherwise?
First off, I want to acknowledge that everything you wrote, in my estimation, is true.
Men, regardless of relationship status, get a chemical high in seeing attractive women.
That doesn’t mean in some alternate universe that I wouldn’t like to be able to have my cake and eat it, too.
That’s essentially what alpha males do – get married and keep sleeping with other women.