I feel your pain and I too believe in prayer. Get down on your knees 50 times a day if you have to. But you now have to start moving on. Get some legal counsel. Stay busy and be there for your children. They are hurting too. Exercise is great! You have got to make yourself strong now. Get a new hair do. Change the decorations in your home. Get excited about doing something. Just stay active. You deserve to be loved!
Don't count on him coming back. If he did, you would never be able to trust him again. You would always be wondering & watching. I have been there! I don't know how men do it or where they put their pain. but somehow they seem to remove it. I will pray for you and your children.