Get on some of the time but bicker a lot and are more like friends than a married couple.
Haven't had sex since conceiving youngest child over 2 years ago
Sleep in separate bedrooms
Believe OH is kind person and great with the kids, but has drug and alcohol dependency that he won't address (though admits he has a problem)
But you're starting to feel resentful and thinking this isn't what marriage should be like.
Any hope?