I believe it's an acknowledged feeling..like when you're full. You just know you're done...and you walk away satisfied... you've had all you need.
I think, if you love him and consider the marriage worth saving, you need to sit him down and explain how you're feeling....to be honest love, ba<x>sed on what you've said, he needs a wake up call.
when you try to blow him, and you bonk your head on the back of his gf's head
the day your husband no longer wants to kiss you in private or public.