His reasoning just doesn't make any sense. If those were his reasons for basing your unreasonable behaviour, because of his unreasonable behaviour, then the law is really fuzzy. If it works, that is. Just make sure you stick to pure logic, be absolutely calm and reasonable in all public dealings with him, and show that he is the one who is unreasonable, and being stupid. Perhaps you should request your S16 return from his temporary stay with his father. Maybe, he will want that now, anyway?
I am so sorry you are going through this, ACJ! But, at least, now you know what to expect, and you know what you are fighting.
Take care. Thinking of you, and you are in my prayers.
Me:57 H:52 M:28 Got another lawyer last year and filed. D35,S/D twins28,D22 EA4/04 End? Who knows? "Life is like a mirror. Smile at it and it smiles back at you." — Peace Pilgrim