A POTTSVILLE man stalked his ex-wife for five months, bombarding her with abusive phone calls and text messages, and threatening to blow up her car.

The 48-year-old father of one appeared before Tweed Heads Court on Monday, charged with stalking with intent to intimidate and using a carriage service to menace, harass or offend.

According to court documents, the man's 17-year marriage crumbled in 2012, but his ex-wife stayed in the abusive relationship for the sake of their daughter.

In July 2013 the woman ended the relationship and moved out to work on a new relationship, spurring constant harassment and threats from her former husband.

The woman did not answer the 20 text messages and 10 phone calls per day, but the abuse and threats kept on coming.

"Be a bit nervous starting your car you f**king s**t," the Pottsville man said in a voice message on December 17, 2013.

The final straw came when the woman noticed her former husband hanging around her work's car park with their daughter on Decembe r18.

Attending Tweed Police station, the woman said she was always nervous, suffering from anxiety attacks, and was too nervous to answer her work's phone due to the harassment.

Police arrested the man on December 20.

The man told Magistrate David Heilpern he was ashamed of himself and the language he had used, stating he would never physically hurt his ex-wife.

But Magistrate Heilpern said the addition of serious threats to the verbal abuse increased the seriousness of the matter.

"Telling someone to watch out when they enter their car ... you know what that means," he said.

The man was placed on a two-year good behaviour bond, was fined $1000, and his ex-wife's aggravated violence order was successful.