What was Mayella's version of her encounter with Tom Robinson?

Mayela claimed that Tom Robinson had raped her and beat her. She seemed unsure of the whole event and based most of her answers off of what her father had already said. Given that later in the book we find that Tom was innocent and that Mayela attempted to come on to Tom Robinson we can understand her nervousness.
Mayella had told the jury that Tom Robinson raped her. it explains everything she said in chapter 17.