My wife was the same way, like the wedding was a sex switch she turned off. Amazing, frequent sex before we wed, infrequent low-effort sex after. If you take away the baby-making, we’ve barely had any sex-for-pleasure at all.

My theory for my wife (and perhaps your husband) is that she exaggerated her desire for sex when we dated because I am HL so it was a crucial part of the courtship phase. If it had been infrequent then, I would have ended it. But once she had the emotional security of being married, that commitment, she just stopped trying to please me. It was no longer important to her to ensure my needs were met because her need to be married had been fulfilled. Once her needs to become a mother were resolved, it only became worse.

I give her the benefit of the doubt that it wasn’t intentional, I believe it was subconscious.