I feel like you're handling this magnificently well, given the circumstances. I would be having a breakdown every other minute. I have my own crazy job situation right now, and its what I'm doing. But, emotions are there, and feeling them is normal and good. It's the only way to truly move past stuff. Know I'm in your corner, and it will get better. The parenting marriage was definitely not sustainable in terms of cohabitation the way he was acting. Nesting situation is an option if you can alternate staying with the kids in a residence they live in? Not sure, but your sanity is far too important to continue sacrificing in this way. You're doing the right thing and the kids will be able to deal. They'll adjust better with you being happy when you're with them, as you mentioned. <3 Sending love.