After eight years of marriage, she handed her husband the divorce papers last October.
The break-up was anything but amicable, and on May 7, it took a nasty, violent turn.
The husband, Calvin, 37, drove to his wife's motor workshop in Sin Ming in a rage.
He stormed into the workshop, grabbed a chair and hurled it onto the floor.
Said his wife, Mindy, also 37: "He was shouting, 'If you want to play, I'll play with you'."
The New Paper is not using the couple's real names as they have yet to finalise their divorce.
When an employee, Mr Melvin Foo, 25, approached him, Calvin walked out of the workshop.
Once outside, he entered his black Peugeot.
But instead of driving off, he rammed his car into three second-hand cars - a BMW, a Mazda and a Volkswagen - parked outside waiting to be sold.
The incident was captured on closed-circuit TV.
Mr Foo said that after the rampage, Calvin came out of his car and confronted him.
"He challenged me to a fight and provoked me. We quarrelled for five to 10 minutes," he said.
During the commotion, Mindy remained in her office and called her father-in-law and brother-in-law.
"I wanted his family to see for themselves what he was like," she told TNP on Thursday.
Mindy said Calvin remained agitated throughout the incident and hurled insults at her.
Once his family arrived, she called the police to report the incident.
When police officers arrived and took Calvin's statement, he broke down in tears, Mr Foo recounted.
Mindy said that it has not been easy dealing with the aftermath of the incident.
"I was fine on the first two days, but on the third day, I broke down," she said.
"I don't understand how he could do such a thing to me. We've been together for so long."
She said it cost her $50,000 to repair the damaged cars.
She believes her husband's rage was sparked by her decision to stop paying for the instalments on the purchase of his car, which was bought in the company's name.
The couple used to run the company together before their break-up.