That's weird

Don't play the game.

Just know he's going to say stupid things.
He's going to say things that make you so angry.

When he comes around, you can expect nonsense.

This is not your husband.

This is that weird creepy guy that stole your husband.

If you react, he knows you still care. He once again will get something from you.

DON'T DO IT! Just shrug your shoulders.

Best phrases:
I don't know
That's weird
Interesting
Okay
I'll have my attorney get back to you on that.
I'm not sure

Or, love you too:) (that's kind of pushing it)

Or best yet, nothing. Just turn your phone off.
Be done.