Hi Maybell, you know this already but your H is just lazy. I don't think all the behaviors you listed above are related to him not loving you. It's just his propensity to be selfish and lazy, or at least in this phase of his life.
It sounds like you tried so hard to do your best and that just allowed him to be lazier and more of a jackass.
In a way it is easy to say he is a horrible person and you are lucky to be getting rid of him, but he is your husband and father of your kids. You chose him because of some good qualities, which may have faded or disappeared or maybe just are outnumbered by his crappy qualities.
Nevertheless the only thing we can do now is go forward. To me what stands out is related to what Mozza said. No more Mr Nice Girl. Instead of focusing on his bad qualities as a husband and father and person, forget it. Let go of expectations that he is a decent person. But don't enable him to be a crappy guy either. This is difficult and means you have to stand up for yourself and be firm. Let him fall on his face and ruin his life. Yes he will probably screw up the kids somewhat. But that's on him and there is really not anything you can do! You are a great mom and person and that will balance it out. You can't sacrifice yourself for him anymore.
You've come far and been so strong! Keep up the good work!
Instead of focusing on his bad qualities as a husband and father and person, forget it. Let go of expectations that he is a decent person. But don't enable him to be a crappy guy either. This is difficult and means you have to stand up for yourself and be firm. Let him fall on his face and ruin his life. Yes he will probably screw up the kids somewhat. But that's on him and there is really not anything you can do! You are a great mom and person and that will balance it out. You can't sacrifice yourself for him anymore.