The student is now 23, and allegedly made more than 1000 calls to his former teacher while in prison, Fairfax reported. Both deny they were romantically involved during that time.
The teacher visited the student in prison, by herself and with the student's mother, according to Fairfax. He left prison in 2013.
A lawyer for the Education Council's complaints assessment committee, Dale La Hood, read a text message from 2014 that he said proved there was a relationship between the two at that time.
Allegedly from the student to the teacher, the message read "Baby after a year and a half I love you more and more every day", Fairfax reported.
The teacher was cross-examined by La Hood, who said the numbers shown in the text messages belonged to her and her former student.
But she said they were "not something that I would send".
The student was also cross-examined and said he did not send the messages, saying there were several people who had access to his phone.
The teacher was interviewed by the complaints assessment committee in December 2015, where she denied a relationship with the student. They were married the next month.
The teacher's lawyer Dzintra King said her client denied any misconduct and the relationship began long after the student was released from prison.
She resigned from the school in 2014.
The lawyers will submit their closing statements to the tribunal next month, with a decision expected later in the year.
