Hi,(posted 7571 days ago)No it was just that while they were married she didn't actually pay the mortgage when she was supposed to.
It sounds like you have a much deeper situation than that of my fiance. If your ex-wife promised to pay in court and then didn't then your case is much more complicated than ours.
Have you asked for legal advice. There are many more on this site much more knowledgable than I but I also think you may need to speak to a solicitor about this. I know they are pricey but you can attend on a fixed fee if you need some straightforward advice.
Keep following the rest of the advice on this site too.