I'm on this DBWarrior thing. However in the case where your dealing with a WAS "who doesn't care"... Your better off getting the closure you need and letting them "not care" with someone else. Its a terrible attitude and will drag the motivation out of someone who cares about them.
Know what your dealing with. In any case I agree with everything else your saying, but I hadn't really thought about the "don't care" aspect of things.
IE: "things are this way because its the way I want them. There is nothing wrong with you. I'm going to do this as long as I can get away with it, if you don't like it - leave, or I'll leave"...
You know what I'm saying?
If your dealing with a "don't care", get your closure, take your life back and move on.