Does anyone know how this works? Husband left, pays half of mortgage , we only own a third of our house . Has now refused to give any other money for the children who are 17 and over or to help me. I work a lot of hours but not on a big wage. He rents a private flat gets good money and djs on the side., drinks and smokes loads. It just seems unfair, we were married 23 yrs . Maybe now the children aren't small he doesn't have to give anything !