No matter what I think or say to the contrary I think this is how W feels, so I'm gonna let this issue drop, it no big deal and I'm not gonna mention it again.
Regarding the work's party W is actually the one who in dithering on whether to go or not, if she does decide to go I'll be there, no question about that. I think what I was trying to show was how I used to react to situations like this (you go to my party, I go to yours). I wasn't using this as a bartering tool or anything like that in this case.
Anyway I had to let off a bit of steam cos sometimes I feel that W is in M to see what happens, rather than is in it to make something happen. Just a bit of frustration catching up with me, that's all.