From Rudy's diary:
So I tried to speak to her and calm her down, saying that a girl shouldn't get upset or she'll get wrinkles, and she laughed. I told her to laugh because everything would eventually work out. It was enough to wait and speak to her (Amanda) and to the other girls, if they knew something. She calmed down and talked about the previous evening, the party, me, and her. We were more or less similar. From what I understood, her parents were separated and this had affected her teenage years. She was more or less like me, not much extroverted. I also had- in different ways- a perturbed childhood and adolescence, I told her, but one falls down and then gets up. She had something special. She asked me about my life, my parents. I told her I had many mothers and fathers and brothers/sisters, but none of these would be mine forever, and she understood that I had lived with many families, and I don't have true parents, and she told me it's better to have many, than have none.
We talked, and at this point, I told her that I needed to go to the bathroom.
Maybe the bathroom part came first (when she came home) and he tried to go out the front, but it was locked. And this lead to the confrontation where he tried to calm her down. Maybe Rudy took things too far and this escalated into a sexual assault.