Is he already devaluing OW ,

InstantKarma,

Well, If I were in your situation, i would focus more on your daughter's well-being at this point in time, if you can think this far ahead.

I hope you will reconsider what the influence of a N father can have on his child-- his so-called need to be seen as a "good father" will override anything to do with his own daughter. His self-image as he wants others to perceive him will always come first over how he regards his daughter and when and if he does consider his own child, it will come in the form of the expectation that his child is an extension of himself. So, pls contemplate the havoc and impact that your ex's future behavior may have on his young daughter. You don't have to take my word for it, but I've seen this happen with a N sister and her children and it has had adverse consequences for the children involved.

Forget the OW, there will be more women down his road. Follow your own road.