Do not validate his feelings or whats happening with OW. Do not validate anything bad he says about you or any put downs he throws your way.
I keep my validation to only specific situations. When the WW is complaining that I did something to make her feel a certain way I just say "I am sorry you feel that way". If she says she is tired I use the same thing "I am sorry". I don't initiate conversation at all with her.
If she says hi and bye I will say it back, otherwise I am a ghost. I have no desire to even be around my WW.
Validation is a very difficult thing for me to master, but I have done a good job thanks to these forums. I just need to make sure I don't validate lies, re-writing history etc.
M:16 T:21 H(me) 38 WW: 38 S11 D16 D19 Red Flags of A: March 2018 ILYBNILWY: August 4, 2018 Moved out of MBR: September 24, 2018 BD/Confirmation of A: October 31, 2018 D Filed: March 27, 2019