Greetings I trust somebody can help me , im separated and have kids now my ex says he is getting a limiting request

Greetings I trust somebody can help me , im separated and have kids now my ex says he is getting a limiting request and a prohibitory request against as I requested installment for clinical , my kid is exceptionally wiped out and I should constantly pay as he says he pays support. likewise I remembered to get a limiting request he needs to know where I stay or am I off-base ? No he doesn't see the kids that was his choice .