You and many people, including some of the folks that have already posted here, have been there; and you know what...everybody joins the "pity party" but what you really need is some solid advice...
Look, she did love but now she hates you, and all she wants is to "take you to the cleaners and make as miserable as she can," so, get real, get a lawyer and fight. What ever you do, do not leave the house, do not sign anything, keep a diary, make a inventory of what you have deeds, titles, bank accounts, life insurance, etc; put you personal valuables and mementos in safe place, this is war!