Don't respond, it is so not worth it! You are right, he knows about the alimony and he is pissed. He's right, the kids may see it someday, he sounds like the type who will show them to try to turn them against you. You told the truth, nothing more, nothing less. When the kids are old enough they will understand that.
"You can't stop the waves, but you can learn to surf." Jon Kabat-Zinn
