Sounds like you did great. But I have to call you on one thing....
I smell B.S. Methinks you called STBX last night because you were upset about the appraisal, the D, seeing the mediator. You wanted the connection. Go ahead, try to convince me otherwise.
Moreover, had you talked to him last night about the appraisal, it would have gone nowhere fast. Plus, he would have come in today firing.
STOP TALKING TO STBX ABOUT D STUFF OUTSIDE OF MEDIATION. COMPLETELY. PERIOD.
And, don't for a minute think that STBX isn't talking to Ls somewhere himself. 10:1, the mediator appealed to him because he thought he'd the only one who really understood the scoop.