The one thing that Josy did that surprised me, was when she chose to be shown around the campus by Jill rather than Maya.
Jill: "If you'd like, I can show you around afterwards?"
Josy: "(Hm... Maya promised me that she would...but I could be making a new friend this way.)"
Josy: "Sure! I would love that!"
She'd only just been reunited with Maya (albeit through complicated circumstances), and she's blowing her off for the opportunity to make a new friend. She already has class in common with Jill so it's not like she won't catch up with her again. It just seems a little thoughtless towards Maya, except it wasn't thoughtless because she actually though about it.
Are you running on a PC? Is it the full version downloaded from here? Have you installed anything else, like walkthroughs etc? Do you have the "music_ep6.rpa" file sitting in your "game" folder?