Lisa are you sure he filed and isn't just trying to manipulate you? If he has no money then I can tell you a L would likely explain to him it would be considered a contested D and those are pretty expensive. My L wants a significant chunk of change upfront before filing the first motion. In fact, I am planning to see another and see what sort of payment options are offered.

Don't respond to his stupidity. He is likely jealous and really, that's okay. What is happening is the power is shifting and he is freaking out. Let him. Any R has to be balanced.