When i go to the college in act 3, i can only interact with madison and veronica. I remember something awhile back stating a reward for getting the college grades high enough before act 3. Did i mess something up?
The "reward" you're thinking of may be that I've said on occasion that you will only meet Quiet Girl and Sword Girl again in Act Three if your College Authority level was maxed out before the finale.
This is still true, but that content isn't in the game yet :)