Let it go as best as you can. Remember this is sooo typical, as painful as it is. There will be lots more things you see and hear that will hurt. I've been through it so many times that I'm pretty much numb to it--all the lies, the deceitfulness, the down-right blatant disregard for what we & the children might feel. The challenge is always to let it go and keep shining. What good will it do to confront? I mean, sometimes it is good to see if you can crack the fantasy thinking, but for the most part it has created more damage to my sitch and not gotten me anywhere except further away from rebuilding W's feelings towards me. Hang in there. Focus on the positive. Vent here just like you did and keep moving forward. You're doing great. Good Luck!
GG
"You got to know when to hold them, know when to fold them..." The Gambler