"[The victim] told us that you used to stalk her, constantly phoning her and leaving messages on her car," police said.
But Green said she was just someone he knew "from a mutual friend" and their relationship was not personal.
"I don't even know her. Every bird I ever ring is going to contact you guys. Add the b**** to the list," he said.
Green defended the charge of criminal harassment at trial earlier this month and today Judge Gus Andree Wiltens released his decision finding him guilty.
He sentenced the defendant to two years in jail - the maximum term on such a charge - and also signed off on destruction orders for Green's address book, unsent letters and his cell phone.
Defence lawyer Peter Broad objected to the confiscation of the address book, which contained about 100 contacts, and the judge ruled only the details of family members could be preserved.
"At least two victims are listed and I don't know how many others are in there. I'm taking a very cautious approach," Judge Andree Wiltens said.
During the trial, Green had tried to convince the court an associate had sent the harassing text messages to the woman, despite giving the police a different story.
When asked why he admitted he was the sender during a police interview at the time, he said he was "pretty much half cut".
The judge was unconvinced by his explanations.
"He was a stranger to the truth; prepared to make up varying accounts to explain away obvious facts," he wrote in his decision.
Green - who uses aliases Holden, Carlione, Colcord, Goldberg and Versace and Dallas Deangeles - is understood to suffer from erotomania: a type of delusion in which the affected person believes that another person, usually a stranger, high-status or famous person, is in love with them.
