First of all, I told W I'm going to the party. I will be there and I have established boundaries w/ W that I won't be stepped on. I have always wanted to be at the party for D, but I had to stand up for myself after W's stunt w/ OM and the party.
I got another e-mail from W who called me a bad father b/c if I gave her the whole weekend to be w/ D, then I wouldn't see D for 11 days. I didn't reply, but the truth is if I don't see D for that long it is b/c W denies me to see her during the week for no reason. Thus, it would be on her and not me. I'm pretty sure the evaluator would see it this way as well.
W's e-mail went on to say "she'll accept my offer to have D for the entire birthday weekend" then she said "I'll consider the last weekend in May." So, she'll take one end of the deal, but not commit to the other end. It is a nice way to get what she wants w/out having to give. I'll address that subject in due time.
Finally, W was angry that I hadn't responded to her earlier concerns regarding my "teaching D to lie to her mother." She really wants to get something out of this and make me out to be the bad guy.
I didn't respond and my new official stance is I will only answer questions that need to be answered, I will not respond to any negative attacks from W, and I will only acknowledge her when she is being nice and playful (like she was the other day w/ the texts about D's eating).
Otherwise, I will communicate as little as possible. I spoke this morning w/ a DB coach and we decided W is using OM to get back at me and I won't be giving her any ammo. I will not talk about OM at all and I will keep things as basic as possible. If she tries to corner me, like she did on Monday, I will politely end the conversation. Also, when there are e-mails, I will either answer the appropriate information and that is all, or just tell her "I'll think about it" and get back to her when it is needed. It is what I'm going to do next w/ her questions surrounding the trip D and I are taking to Lake Tahoe over Memorial Day. She doesn't need anything right away as it is so far in the future.
I think this will work for me and I think it will help my DBing if I can remain consistent.