Two of three charges against Geoffrey Maher were withdrawn in Port Kembla Local Court on Friday after repeated efforts to find his alleged victim were abandoned. Maher, 38, pleaded guilty to intimidating the woman with the intention of causing her fear.

The court heard Maher became angry at the woman about 2am on January 27, accusing her of checking up on him when she called him the night before.

The woman became fearful and started making arrangements to leave her home about 5.30am when Maher again confronted her and told her: 'If you make a sound I'm gonna tie you up and gag you and take you to your ex."

When she went back inside the apartment to talk, Maher told her, "if you keep raising your voice I'll jump on your head", holding a pair of scissors as he did so.

Maher was later arrested, but was not immediately interviewed due to his level of intoxication.

On Friday solicitor Matt Ward, acting for Maher, told the court his client had an addiction to crystal methamphetamine and had been using the drug for the four or five days leading to the altercation. He also hadn't slept for at least the previous seven days.

Prosecutor Dave Coulton withdrew related charges of assault occasioning actual bodily harm, and detaining a person with intent to obtain advantage, because the complainant could not be located to take part in court proceedings.

Maher was sentenced to nine months imprisonment, with a non-parole period of five months and 14 days. With time already served, he was released on Friday.