Luv, You will do fine. Try to be relaxed and calm, I know, easier said than done, but you can do it. Get the house really clean. Cook something that smells wonderful. Give him alone time with the kids. You can stay at the house, just find something to do in another room. Root has given suggestions before to put out pictures of the kids and you doing fun things. Make him see what he is missing.
Hugs
Life's challenges are not supposed to paralyze you, they're supposed to help you discover who you are. -- Bernice Johnson Reagon