Hi Beesha, I'm very sorry to hear about your situation. I only wish my W wanted to work on our marriage as much as you do with your H.
It might be time to do a few 180's if you haven't already. If you pull back big time I think he'll notice. The more you GAL, do things with your kids, your H may start to notice and want to be a part of that. It feels very odd to do but the more you pull back the more your H may start to realise what he's losing.
Me-40,W-37 D7, D5, S3 Separated Oct 3/2013 T 11 YRS M 7 YRS