Kelly,
From what I've read, there is no way that the crazy, urgent kind of love is sustained forever, no matter how delicious it feels.
I discussed this with my H before we got married, and even before it ever happened I was sad about it, but I think I was wiser because I anticipated the changes and stages of a relationship.
You have gotten excellent feedback, and you yourself identified that a prior torch poofed in an instant.
I hope that for your sake, your husband's sake, and your kids' sake that you can find the path you need to go as far as your marriage, whether that is together or apart. As everyone says, first things first. Integrity is the foremost of firsts, as tt said.
It's a shame that your H seems to be in love with alcohol. I pray that he will realize what a cruel mistress he is choosing. It doesn't mean, however, that it has anything at all to do with your desirability. It's hard to realize , but please try to get that.
Unless he gets into recovery, alcohol will be his mistress, his master, and his demise. I feel very badly for him.
Best to both of you-
cats paw