She also plans on staying with a friend out of town for a few days after the weekend. I don't know what to think about that.
Assume the worst, and plan accordingly. It's more likely she's probably just "punishing" you for putting your financial foot down, but yes she could be going to hook up with OM as well. Your response needs to be "I have no desire to control you, do as you please. Just know that I'm no longer willing to live in an open marriage, and I'm also no longer willing to lie to cover up your affair."
YES, it almost always gets "worse" before it gets better. But only if you define "worse" as "she seems angry with me." There's nothing she's going to be doing that she wasn't doing already, and the problem with a lot of these situations is that people think something is "working" simply because their wayward spouse is NICE to them. Well, they're usually "nice" when they're allowed to conduct their affair, unencumbered.
Just put on your spew jacket and hold on for the ride.
