Why Vickie Guerrero was released?

It's been reported that she left because she wanted to spend more time with her kids. Although I don't doubt that the insults probably hurt her feelings. I mean yes mean things are thrown around all the time in the wwe but its very rare that they are that personal. I really am disgusted with how Vickie was treated because I love her and think she did her job INCREDIBLY well! If that was however the reason she left than I feel even worse for her and I hope Vince rots in hell :)