She doesn’t speak badly of her exes
It’s in poor taste to speak badly of your exes; it just is. The truth is, you chose to be with that person. So in some way, whatever happened, you let happen. It’s painful but it is true. To speak poorly of one’s ex only shows the inability to take responsibility for the happenings in one’s life. A woman that is able to speak at least diplomatically about her ex has taken the mature view, and that is that every person is an experience and a lesson.