Until reading this board, I had never heard of cognitive dissonance, but I think my DP is suffering this wrt his STBXW, and I don't know if it's possible or advisable to help him.
Essentially he is having to wake up to the fact that ten years of marriage have not been what he thought they were. I think he had buried his head in the sand by working on the basis that if you're married, you love your spouse and they love you, so everything that happens within a marriage must therefore be ok. In the same way that many women write on here of all the awful things their DH does and then go on to say oh but he is really a good dad because he plays with the kids etc, I can see DP struggling with yet another awful piece of behaviour from his ex, and trying to write it off as her being tired, or stressed or anything that does not mean he has to face up to the fact that she has always behaved badly towards him and that he just couldn't see it.
She is still very much in control of their divorce (won't stick to anything agreed, lies about where the process is at), she is a Disney mum which affects their kids, she tells lies about DP to friends and family to try and excuse her own actions etc. She instigated their split after a lengthy EA (he and I met well after they had separated). In the midst of this DP is trying to be the nice guy when he needs to stand up for himself, and his kids, a bit more, and basically to stop giving her the benefit of the doubt.
Does it matter? Will he get there for himself in the end? If I try to point out that her behaviour is not acceptable I am in danger of sounding like someone with an agenda, all I want is for him to be able to move forward with some dignity and to get their relationship on the equal footing it needs to be for the kids, whilst seeing that she isn't above board and honest. A very hard thing to admit about the mother of his children.
I suspect I may get flamed for the above, or be told that my perspective is skewed, but she is really a difficult person, which seems to be evident to most people, other than DP. Do I spell it out brutally, or leave it, or just try to support him as (when/if) realisation dawns?