You made a good point yourself: his keeping those emails...and your being able to move on. As long as he keeps demonstrating this way... and you can remain at least somewhat mellow... it will play out well for you. He will, or the attorney will try and push your buttons and get you to act out, raise your voice, say nasty things (which might be true) or even stomp out of the office/court. If you can remain neutral when he is shown to be unpredictable in his behavior...you'll be ahead.