(((((BobbiJo)))))) I think you should serve him in any case, but that's your call.
I don't trust him. No matter what he says in the email, or what he claims. How hard would it be for him to talk to her ahead of time, and warn her it's coming, but that he really doesn't mean it? He's a manipulator, I would not put it past him. Serve him, but let him know you are not closing the door. Then watch what he does.