he did like to have sex in the beginning and also likes porn,many men and woman have this really shitty view about woman and men, they think that girls/boys should dress a certain way and behave in a certain way and when girls get too comfortable they start to remind them of there parent.You can see what i'm thanking about when you watch anime and watch how the moms dress and behave and depending on the manga or anime the father will be madly in love with this ideal view of a woman.
This may be boring:
But in ancient times when the woman was giving birth they didn't let the man enter the room so that he doesn't lose interest in the female:because he may remember his mother and stop wanting to sleep with her and woman had to take good care of their bodies during pregnancy so they don't get stretch marks because men associate that with their mother.
Even so, they wanted children, and wife asked the husband if he wanted children which (If I recall correctly) he said yes, but he wasn’t even trying. Not once. You don’t need to have “alot” of sex to have a kid, but you need to at least do it, to have the chance to get one
this also shows that he lust for her,maybe he still love her but doesn't see her as sexually atractive
i'm just thing, what if the guy is one of people who just don't like sex so he just doesn't get the urge for it at all
or
i could just be talking out of my ass and i'm completely wrong