I wouldn't call it being cold. This sounds more like disengaging - you've been hurt by her repeatedly and you are learning how to protect yourself. Even a dog will learn when you kick it each time it's called.
Part of this may also be emotional plateauing - you can only process so much at a time, so sometimes your emotions stall out to give you a chance to catch up. I would take both of those possibilities as a sign of moving forward on your own.
[This message edited by SerJR at 8:07 PM, October 17th (Thursday)]