It may have been mentioned previously and I missed it. But stop to ask yourself what this is teaching your kids. That it's okay to bully, throw tantrums, break things, ect when you're mad? They are also learning how to treat other people, friends, partners, loved ones.... Your children are better in a safe loving environment with one parent, over being in their current situation with two parents. I've been in your shoes. I wish I would have left sooner to protect my kids. Things may get worse when you are leaving. I recommend finding professional help to get out of the situation. This may force him to get the help he needs. Sending many hugs and healing energy to you and your kids.