I actually read these posts on my phone, on the way home from shopping (she got the car, so I'm bussing it now). And that turned out to be a good thing-- my first reaction to the idea of unfriending her was negative, but having the time on the bus ride to think about it made me realize that yeah, the only thing I'm gaining by being her facebook friend is knowledge of her latest adulterous romps.
So I did indeed unfriend her just now. And I already do feel a bit better. Thanks, all.
