Complex sentence: He follows her home and forces his way into her house, to which she tells him to leave, and in return, he starts taking pictures of her, assaulting her, telling her she looks good when she's scared and screaming.
Split into simpler sentences: He follows her home and forces his way into her house. She tells him to leave but he starts taking pictures of her, basically assaulting her, telling her she looks good when she's scared and screaming.