it's the first time on your thread but we have "met" over at Michelle's. I am very sorry to read your H thinks there is nothing "there" anymore.
I wish you to find the inner peace and strength to come out of this happier and stronger. Our kids have almost the same age (6,5-5,5). I know how defficult it is. Take care of you and them and try to find positives in everything that life will bring to you.
Stay strong. "When a door closes, a window ALWAYS cracks open." Take care Kalni