A Supreme Court jury took just over two hours to unanimously find a 33-year-old man guilty of two counts of rape.
The eight-woman, four-man jury found the man guilty beyond reasonable doubt of vaginally and anally raping his former partner of nine years in her Summerhill home on June 15, 2019.
He had pleaded not guilty and told the jury that he was having consensual vaginal intercourse but his "penis slipped and went in the wrong hole".
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But she gave evidence that he had said she would always be his girl and that she needed to be taught a lesson for starting a relationship with another man.
The man sat with his head bowed after the verdict.
Crown prosecutor John Ransom told Justice Michael Brett in a sentencing submission that it was a serious example of the crime of rape.
"He attended the complainant's home uninvited and in breach of a family violence order and then raped her vaginally and anally, that speaks for itself," he said.
He said that the man had 16 pages of prior matters which was particularly poor in relation to domestic violence.
The man had been found guilty of common assault for slapping and kicking the woman about two months before the rapes.
The record included a Criminal Code conviction for assault in a domestic context and a further common assault in 2014.
He said the man had issues over many years with drugs.
Mr Ransom submitted that the jury had agreed with the Crown case that he had committed two deep penetrations of the woman.
It was an assault which caused the woman to remark that it was more painful than labour.
The case witnessed the first use of a police officer's body-worn camera footage in a Supreme Court trial in Launceston.
On Thursday, Mr Ransom said the footage was a critical contemporaneous recording of the woman's allegations and demeanour when she visited a friend's house and rang police within minutes of the incident.
He said she was an outstanding witness because her version of events was consistent across several interviews with police, medical staff and in evidence given to the court.
The defendant gave evidence in court which Mr Ransom dismissed as "nothing short of a lie"
The man claimed that previous cases of sexual intercourse had resulted in bleeding by the woman-a claim which was not able to be put to the complainant.
Justice Brett will hand down sentence at 10am.