Well, remember, this doesn't mean anything is done. I think this was a step that had to happen, no matter what the end result turns out to be.
I also think that this validates what you've been doing! By not taking the bait, you let him actually make a decision! We don't know if he will actually follow up on it, but he gets to take responsibility for his own actions.
Even though W is still in the house (not for long!), things around here got a lot calmer once decisions were made. I hope the same is true for you. It might feel like it, but this isn't the worst thing that could happen, by a long shot.
Now it's time to turn your focus from him to you. Without taking him into account, what can you do to be the best Fallgirl that's ever been seen?