So basically, I'm going to get the boxes in the morning and then have them conspicuously in the house. If/when my wife asks, wht. I will respond that "I am waiting on her response regarding her A, and that I am panning in advance for if her answer is not for our marriage. I will not live in an open marriage.". Then I will leave the house. She will be packing for her trip to somethingfest and will have the weekend to mull it over.
Does that sound ok?
I would try to be shorter, less specific. Something like "Well, this clearly isn't working for either one of us the way things are right now, so I'm just trying to get some ducks in a row. I think we both have some big decisions to make, very soon."