I strongly agree. If he is still sending texts and messages like that you need to be better protected. It needs to be specific. I'm so sorry you're dealing with this.
Is this a violation? - Page 2
Don't count on actually getting child support. My ex hasn't paid in months either and I know I can't depend on ever getting it. As far as I'm concerned though, he's digging his own grave in the eyes of the courts. We're in a custody battle, and it surely doesn't look good on him to be forsaking his responsibilities.