"And maybe I should state something about his anger/sarcasm in it?" - I dont know if that would have the necessary effect (that you are hoping for). I think that you can impose boundaries without feeding into the negative energy of the situation. Pointing out to him his own failings will not have any effect whatsoever. WAWs, especially MLCs, are so ego-centric, they will never take any criticism constructively. Just my 0.02. Keep reporting positives from your end. Keep developing positives from your end. Extremely hard to do, but those are the cards we are given.
UD
The 3 laws of DBing:
1. PMA is critical to DBing.
2. Since drop in WAW's PMA leads to drop in LBS's PMA and vice-versa detachment is critical.
3. Validate to raise WAW's PMA and GAL to raise LBS's.
