Wow, it sounds like you have found a way to make it work. I commend you for that. Even though it may not be easy, it's working. 

Scary when kids involved. Even as adults. I bet your kids would handle it better than you think. But I would never give you advice to find that out! It's every person's own journey. My parents split up with I was in college. It was hard at first. But knew they should have been divorced since I was about in middle school. Sometimes I wonder if my mom should have just left my dad then. Which is why I wonder if my son as he gets older will wonder why am I staying with his dad. He knows what goes on. We talk about it so he's not worried about the screaming and yelling that comes my way. 

Even today I told my son that daddy's not doing well cause he lessened the meds he should have increased. And he said, wow, then dad might be like this my whole life if he doesn't change them. Which is exactly what I'm afraid of! It's something I can't imagine bearing my whole life.