John Babbington, 36, has been found guilty of taking and detaining a person with intention to obtain advantage occasioning actual bodily harm, aggravated break and enter committing a serious indictable offence occasioning actual bodily harm and common assault.

The charges stem from incidents over a number of days in January 2015 against his former girlfriend, then aged 22.

Court papers said the pair had been in a relationship since 2013 and during that time the woman had been exposed to emotional and physical abuse.

The court heard on a dozen or more occasions their arguments turned physical and Babbington had punched her, in and around the head, so it wouldn't leave marks.

Court papers said they had broken up numerous times before the women moved out on January 16, 2015.

The following day they met for lunch and later the woman went to his unit after finding out some information from her workplace.

She allegedly slapped the Babbington in the face, believing he had lied to her.

Police documents said Babbington picked the woman up and threw her onto a bed, causing her to hit her head,

She managed to leave but Babbington continued to send her accusatory Facebook messages during the evening.

The woman returned to the property on January 18 around 10.30am climbing in through a window to talk but the conversation became heated and Babbington refused to allow her to leave.

Babbington threw her onto the bed as she tried to leave.

Court papers said he squeezed the woman's throat and punched her in the head.

At one stage he grabbed her head and punched it, and hit her head on the staircase. He also headbutted her.

The court heard Babbington even sat on the stairs sharpening a long kitchen knife and threatened to slit his own throat.

During one moment of calmness they talked on an outside balcony with the woman even “considering to jump off to get away.”

The woman again attempted to get away but was caught and hit again.

Showing remorse Babbington allegedly carried the woman back upstairs. Police arrived at the home but left when no one answered the door.

The woman asked for food and managed to escape while they were on their way to the kitchen.

She managed to get to her car and drive to a family member’s home.

Babbington followed her and gained access to the house before smashing down the bathroom door where the woman had locked herself in.

He again headbutted the woman, who decided her only option was to again go with him but she managed to contact her mother who rang police.

The whole incident had lasted from 10.30am until 6pm.

In Nowra District Court, Judge Michael King refused Babbington bail and sent down his sentencing in Sydney Downing Centre on April 27