Hi, Big breathes! I don't think you are ready for the last resort technique, because that is what it is, a last resort, and you are just beginning. Or going dark.
Try and stop pursuing him because you are reinforcing the behaviour that he doesn't like. I know you are worried about your financial stuff and I am sure that is adding to your anger and pursuit of him. They will not do what we want, in fact the more we state what we expect the less they will do if you are begging and pleading and carrying on. Get a copy of Divorce R and take advantage of the information on the website which a lot of excerpts and extras from the book.
I would suggest you calmly call him and say that you would like to sit down and talk about the finances and set something up to see the children. Tell him you are not interested in talking about the relationship, just business. Maybe meet in a neutral spot, a fast food place or a park.
BE strong, you can do this. Try and follow the DR principles.
