I noticed a small issue with the friendship point system. When you're first talking with Rhea in your dorm room and asking her questions, because the questions aren't removed after they're asked, you can keep asking her about herself over and over. You get two friendship points with her every time you do that, and you can keep doing it as long as you want. I don't know exactly how the point system works, so I don't know what effect this can have, if any, but I doubt it's intentional behavior.