Wait I didn’t get anything with her and I didn’t avoid her
Don't ask me, I don't know what your choices were, but you done goofed
I honestly have no clue how this has caused so much confusion, the choices are very straightforward. I remember several people a while back complaining Stephanie was unavoidable, when on my first playthrough I was able to avoid her after a while with no problems. Now people who apparently didn't want to avoid her did it by accident, and I'm like
But to you, and anyone else that didn't get their desired outcome with her, you can just start a new game and after you set relationships It will ask you if you want to start from ch.9. Choose yes, you'll get this question, and you can choose what you want. Problem solved.