Good luck with D's grandma. It's a good thing she's on board and like you said, very important to maintain that for your D.
I think AS nailed what should be your mantra for whether or not XW is nice or not. Keep that even keel irrespective of what she says. She cannot hurt you anymore, and her threats mean nothing unless you give them credence and react to them. All you can control is your reaction, or lack thereof. Look at my sitch with the storage saga and the veiled threats. I didnt react and with the guidance of the forum responded in even tones. It worked - no backlash.
I've been meaning to ask what else you've been doing for GAL? Any particular things you're doing for yourself only? Did you get any bonsai?
Stay strong buddy.
Cheers DS
Me: early 40's XW: nearly 50 T: 15 M: 5 BD: Jan 19 S:10 SS: 22 SD: 24