Why does Mayella Ewell accuse Tom Robinson of beating her

She tried to seduce Tom Robinson however, he denied her advances. When Mayella Ewell's father saw her trying to seduce him. She was scared of her father as he was disgusted by his daughter's action. A white girl trying to seduce a black man especially during that time period was a huge no no. Her father beat her and put the blame on Tom as no one would say anything.