Feeling Low

Told my x it was over in April after 12 years married, 8 of which have been heartbreak after heartbreak.  We have three children 14y, 10y and 2y. We moved to Spain last year to make a new life and get rid of money problems and debt but have since discovered that no matter how much we pay off debts from selling houses he will just amount it up again within a few months by getting cash on credit cards.  Dont get me wrong its not just money.  He works away alot and cheats, lies and basically leads a single life when he's away using credit card cash, when we're at home with no money in the bank