According to an arrest affidavit obtained by 9NEWS Investigates, Cooper sent the woman 20 individual text messages, called her twice, and then went to her apartment and knocked on the door - which his now-ex-girlfriend recorded through a peephole. Among the messages laid out in court documents are ones where Cooper told the woman he wanted to have sex with her. In other messages, prosecutors allege, were an attempt by him to get the woman to violate a court order that barred her from having contact with him.
"Please, I won't betray you," one message read.
In all, Cooper now faces five separate charges:
*Second-degree assault-strangulation
*Third-degree assault-knowingly or recklessly causing injury
*Criminal mischief -- $300-$1,000
*Violating a protective order
*Harassment-repeated telephone calls