I agree with Laurie and the others here, keep the evidence and give it to your lawyer and then trust that your best interest and the chidren's will be protected.
Your recovery is shining girl, because you recognize this for what it is, even if looking at it is painful. He IS a bully and a manipulator and he has absolutely no power at all except the power that you would give him by buying into any of that. A bully who cannot scare the intended victim will stop. Sadly, this bully is pathetic in his methods, they've all been tried before and are quite transparent. All I hear from what he said and wrote is "Me, Me, Me", typical of an addict not yet in recovery.
If this happened to me, I would cut off all contact (the RO is there for a good reason, yes?), and communicate only through your lawyers.
Hugs