You need care about kids

Your husband already doesn't care about the family. You are a mother, and now you need take action to take care of your kids. You need think about a way to let them have a stable and happy life. Right now, your husband cannot change immediately, and he wants to go. Let him go. Think about what you can do to make life better. I know the process is painful, but you have to fact it and go through it. The main point is that you are a mother, which is more important than being a wife.