Kyle Gee, 28, of Glenview Drive, pleaded guilty in Warrnambool Magistrates' Court on Thursday to unlawful assault and recklessly causing injury.

The court heard Gee was released from jail in early September after serving 17 days jail for drug, driving and weapon-related offences.

He attended the female vicitm's house four days later and began telling her about an altercation he was involved in at Gateway Shopping Centre.

The court heard Gee believed the victim wasn't listening to him and immediately became angry.

The victim, believing things would escalate, called her mother and asked her to pick up her young daughter.

After the child left, Gee started punching the victim to the face repeatedly.

She ran to the bedroom, where he followed her and continued to strike her to the head and face.

The court heard the victim could not specify how many times she was assaulted.

She later told police she slept on the floor at the front of the house that night in case she needed to cry out for help.

The following morning, Gee grabbed the victim in a headlock, causing her to become dizzy.

He then punched her to the nose, causing it to immediately bleed.

Police attended the victim's property on September 11 and discovered serious and visible injuries to her face, including swelling to both eyes and left ear, and lacerations to her face and neck area.

Gee was arrested, charged and remanded in custody.

Lawyer Amanda Chambers said her client had some prospects of rehabilitation "despite 2020 being a year that has seen (Gee) spend three periods in custody".

She said Gee served 33 days in jail earlier this year for driving and drug offending.

She said he was out for two months before further offending led him to 17 days in jail.

"Then after four days, the current offending occurred," Ms Chambers said.

"This is probably the most serious offending that has brought him before the court."

Ms Chambers said Gee had substance abuse problems and at the time of the offending was consuming methamphetamine and drinking heavily.

The plea hearing will continue on December 14.

Gee remains on remand.

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