I can imagine the challenge it is with d13. My best advice is to continue your efforts to be there for her, validate her when talking with her, and above all keep the disappointment and hurt you are feeling to yourself. I say this as I have to do the same with my d17, because when I don't it causes her to feel guilty and upset.
IMO it is important for them to do what is right for them,and for us to support them. The divorce is hard on them and whether we like it or not they are being forced to choose. Be there for her. Love her. And respect her choices and she.will recognize this even if it takes time.
I am so thrilled to see the progress you are making and I will be here to support, encourage, and whack you with a 2x4 when needed as you continue on.
Have a peaceful and spiritual time at church and enjoy the rest of the weekend.
Me 46 Former W 46 D19 D7 BD Feb 2016 WAW moves out 4/16/16 D final 6/1/2017
It's time for me to start changin' the way I look at the world......and at myself. ~James Howlett aka Wolverine