WAW is angry and filing divorce

[SH_]

I am journaling for the past couple of days and situation.
Wednesday WAW was still going after my D17 about her decision to live with me after the divorce is final. My daughter was feeling really distraught and had a break down with me when her mother left that evening to go look at places to live. Her breakdown was really difficult for me to see and listen too as I feel so helpless. My daughter noticed this and then began to apologize and say that she will get it together. This breaks my heart into a million pieces.
I then took her to a church event and returned home with my D5. I called a family member just to find a conversation of peace. As we got home and walked in I see that WAW was at home unexpectedly. So I go to the back room and lock the door and finish my phone conversation. WAW knocks at the door and then asks me whats going on. I reply that D17 had a rough evening. WAW then says we need to talk about that. I am not in a good place, so my response was to ask how her efforts to move out are going and how soon and what is the news from her L to move the process forward. I know this may not have been wise as I was angry.
She responded that she is trying as fast as she can, but that I need to stop manipulating our D17. The court should say how she will split time with us. I reply that our D17 is a young adult that can make her own decisions and that I will not impose on that one way or another. WAW blames me for manipulating her because of all the time she see's me spending with our daughters. I ask if she knows what we do or talk about. I ask her if she even really wants to know. She goes into a tirade with many accusations and says that she has to go see "Your buddy the bishop now because of you." I almost want to laugh because it sounded so silly, but I did not. I then asked her if I heard her right and she said never mind and left. I perceive she said this, because I meet with him weekly and she has avoided him. Not only is he the bishop at our church, but he and his wife have been friends of ours since 14 years ago, but now she is avoiding contact and conversation with them.

I expect D17 and WAW around 8:15pm , but they do not show up. I then hear WAW cell phone and see she left it home and that D17 had called. I then call D17 and text to make sure everything is okay. No response. A few minutes later knocks at the door and it is D17. I ask her if everything is okay and who brought her home. She smiles and says mom did. I ask where her mom is as she is not with her. She says that she dropped her off and drove away crying.
D17 then shares that on drive home, her mother asked her why she was choosing to live with me. When D17 would start to share why, her mother would cut her off and then try and blame me and get angry. My D17 would then just stop talking. Her mother would then apologize and then ask her again why. The same thing happened 3 times and D17 finally said, mom, you don't really want to know so I can't tell you.
D17 said that mom went silent then after a few minutes said, "Fine, I am just a selfish B*tch" and then broke down and started crying.

My daughter seemed at peace and said, I have had an epiphany dad that will help me not get caught into moms arguments.
D17 shared that she knows her mom is projecting her anger onto me, and resorting to childish behavior because she is not getting her way. My D17 had shared with me how she learned this stuff in psychology course at school and now it makes sense as she watches her mom behave in ways that we have never seen.
My daughter is wise beyond her years and it brings a tear to my eye.
Side note
While I was at home alone with I was getting her into the bath and ready for bed, she jumped up on my lap and gave me a hug and said daddy, I love our home and I don't want to leave it ever. Oh the pain this causes in my heart, but I just hugged her tight and said, I will take care of you baby girl, I will take care of you forever.