Always know how to respond (not react) to both the worse case and best case behaviors of your wife.

Do not take anything she (or anyone else) does personally
Always do your best
Do not make assumptions
Be impeccable with your words

(read "The four agreements" by Ruiz)

"What is best for my kids is best for me"
Amor Fati
Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712