Perhaps she is having issues with OM. Perhaps she is just cake eating. Perhaps she just really, really likes those Christmas decorations. It's not your concern. You don't care if she comes or goes. You don't mind either way, right?
I am wondering, do you ever have plans to do something after engaging with W? For example, is there ever a time like tonight, when you would excuse yourself to go to another engagement? That would REALLY show W that you were GAL, and you would be. It would possibly make her wonder WHAT, WHERE and with WHO you were running off with. It might be good for her to winder that. It might be something for you to consider for next time. "Hey Wife, this was fun decorating the house. I really enjoyed this. Sorry I have to excuse myself. I have another thing I agreed to do tonight with some people" Then, just go out.....and actually do something with other people.
