Confront Her With The Video

You furiously click the download button. Click. Click. Click. Technically keeping the video would be illegal, but it isn't like she's not way passed the line of legality as well. You're certainly going to keep the video, for the sake of...Private explorations, but you also download a copy on to your phone.

This is more then enough. Between the video and the bag, you have all the **** material you could possibly need. Besides, if she's spending so much time and energy following you, she can't be too opposed to some kind of arrangement.

About an hour later you arrive at her door in the east dorm. Based on information from her bag, it wasn't hard to track her down. Plus, the door of her room is covered with cutesy anime pictures of guys kissing each other. Yeah, she would be a fangirl.

You hold up your phone, with the video of her playing, then you knock on her door and wait. Let's see how she reacts to that...