I do hope that you are keeping copies of the letters that you are sending your looney tune h. Also, I wouldn't put too much stock into his agreeing to mediation. He may very well be playing you.
Watch your back and document everything.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.