Some people think because they're paying court ordered child support, that comes directly from their paycheck, doesn't mean they're not a dead beat parent. Sorry about your luck there. Being a parent isn't just a financial responsibility, it's also a physical and emotional responsibility. And to let another person stand between you and your kids is just wrong.
After 1 1/2 yrs w/o support I'd say it was abandonment, we were homeless after he had utilities turned off & lived off credit cards to survive, having to then garnish wages/contempt court charges/pfa violation resulting in icc arrest.w multiple police reports and don't forget multiple affairs, 2 hidden adoptions w/o me knowing (wife 11 yrs)..and yet now has female roommate watch the kids not himself even though we're still married = nuts!