Ooh, me me me.
"Why are you afraid to let me fail? Is it because you don't think I can handle it or don't want me to get hurt, or because you think you are responsible for everything in my life? Is the college I go to about the security of my future and happiness, or the letter grade of how well you did?"
Of course, this would have to assume that she would give an honest answer, as well. In hindsight I tried not to load the question too much but it's pretty much spilling over.