Acid attack: Tanya St-Arnauld's ex Nikolas Stefanatos pleads guilty

Nikolas Stefanatos has pleaded guilty to the acid attack which left his ex-girlfriend with severe burns and needing several rounds of surgery.

Brossard man pleaded guilty in Longueuil court Thursday morning

Tanya St-Arnauld has had to undergo several rounds of surgery since her former boyfriend, Nikolas Stefanatos, sprayed her with acid in August 2012. (CBC)

Nikolas Stefanatos, the Brossard man who sprayed acid on his ex-girlfriend, Tanya St-Arnauld, has pleaded guilty to aggravated assault.

The plea at the Longueuil courthouse came today — three weeks before Stefanatos' trial was set to start.

The attack, which happened in August 2012, caused second and third degree burns to St-Arnauld's face, back, neck and arms.

Stefanatos sprayed St-Arnauld with a household cleaning product containing acid, apparently in a bout of jealous anger.

Stefanatos addressed the court to say he was sorry for what he did.  He apologized to St-Arnauld in front of the judge, adding that he would hug her if he were allowed to.

St-Arnauld reminded the judge of the devastating effect her ex-boyfriend’s actions have had on her life, including suffering from second and third degree burns, being in a medically induced coma and undergoing skin grafts. She said that she now has the skin of a 70-year-old.

Stefanatos is due back in court on Dec. 3 for his sentencing hearing.

Crown prosecutor Erin Kavanagh told CBC that he has already reached an agreement with the defence on a suggested sentence, calling it “significant.”

Stefanatos has been held since the night of his arrest two and a half years ago, and that time served prior to his conviction will count as time-and-a-half once he's sentenced.