Yep, had some on me and he said Steve's been acting strange it's saying to check on Steve, but he's still there and I can't go back to the campus area now
I'm sorry you have to deal with this issue.
Once Horace shows up shirtless, he shouldn't talk about the book again.
I'll try to see if I can reproduce this, so I can fix it.
My recommendation would be to start the chapter over if you have a save, because I don't think you could advance the story otherwise.