Saying that you respect his decisions when you really want to call him a lying cheating meanie is NOT a good idea. Be authentic. Validating is showing a person you understand they have a right to make their decisions. Because they do. You do not have to say you respect, support, like or agree with their decisions because you also have a right to your own feelings and decisions.
This is not really a chess game. The advice on this board helps people get to where they can better understand, empathize, and lose the bitterness and the scorecard and have a chance of a hope of reconciling, but it is by becoming a better person, not by saying the magic words.
Adinva 51, S20, S18 M24 total 6/15/11-12/1/12 From IDLY to H moving out 9/15/15-3/7/17 From negotiating SA to final D at age 50 5/8/17-now: New relationship with an old friend __ Happiness is a warm puppy.