I have no doubts that this still can all go horribly wrong for me...

Wether his new wife knows or not I do not know or care, but exP is still paying all the household bills/mortgage here.

If he stops I cannot meet them. I have boring, menial p/t jobs (3) that just allow me to feed me and the dog and run my car. However if the bills go unpaid not only will he get in trouble with creditors but could well lose his job (he works for the court)

The way things are going currently how much worse can it get????