Maybe I'm just slow, but only here did I realize that she was actually stuttering and that it wasn't simply her being super nervous while speaking (though that probably makes it worse.) I've only known one person who stutters in my life and he was the father of a friend. Maybe it was because no one treated him differently due to his stuttering, but I never thought it was something to be ashamed of.
This girl had really bad luck and was born into a family of shitheads. Stutter does get better or worse depending on the situation and it's no wonder she still has a really hard time. The shithead whose blood runs through her veins never tried to help her lessen the stutter or got someone to help her out with it. You could say he and most people there are ignorant fucks, so they didn't know you could lessen the stutter and even stop it completely, but it takes time. It's not like you just tell a person, "Don't stutter anymore!" and they will somehow be able to do so immediately...
I hope she gets help to lessen her stuttering, but aboveall I just hope she feels safe enough to not be nervous all the time. Being on edge all the time must be so fucking draining.