A Vietnamese woman has been sentenced to 30 months in jail, after being convicted of voluntarily causing grievous hurt to her Singaporean husband.

The 44-year-old woman, Phan Thi Ngoc Dung, assaulted and stabbed her husband with a knife during an argument after believing that he was cheating on her, despite his protests that he was not.

51-year-old Zhong Zhengye told the Chinese daily that he met Phan through a friend in the mid-2000s. Zhong and Phan – a divorcee with a daughter from her first marriage – married in 2014 after being in a relationship for seven years.

Phan and her daughter moved to Singapore on a long-term visit pass and the family settled at Block 399 Yishun Avenue 6, three years ago.

In the wee hours of 29 March this year, Phan started an argument with Zhong and insisted that he was having an extramarital affair since he spent long hours away from home. The pair were arguing in the bedroom when Phan suddenly took out a knife and stabbed Zhong in the back.

She then picked up a golf club that was laying on the ground and swung it at her husband’s back, before beating him with another golf club. Zhong tried to flee but Phan grabbed another pair of golf clubs and hit his back and left eye.

Awoken by the noise, Phan’s daughter woke up and tried to separate Phan and Zhong. Zhong called the police around 4.25am and told them, “My wife wants to kill me, my face is full of blood.”

Zhong, who heads a business development unit, told the Chinese daily that his wife frequently argued with him after they moved into their Yishun apartment, three years ago. He said: “I am very busy with work, often leaving home early and returning late. We always quarrel about it and she even suspected that I was having an affair.”

The court heard that Zhong intends to divorce Phan and has engaged a lawyer to meet with her but Phan has rejected the meeting.