Probably being a witch and maybe selfish motivations, but I guess her motivations also could be logical you never know. I think setting aside her possible questionable motives, since you don't know them for sure anyway (WAS brains work differently than ours), but would it be an inconvenience or problem for you to do that or would it be not too much time and trouble? That's how I would decide. So if it wasn't that big a deal then I'd agree (yes, I'm more of a marshmallow than some here I know). Then maybe next time on a bigger decision she might give you the benefit of the doubt (well probably not but you never know).
Also you could look to 180s. I think your W seems like she is always expecting a fight from you, maybe often provoking them. I would be tempted to just agree when possible. Like with kids (I always seem to relate that to WAS) you have to pick your battles you know. Karen
