Clancy McAdie snapped because she reckoned the victim had "slept with my boyfriend".

Defence solicitor Angus Lingham told Albury Local Court magistrate Rodney Brender that this was "a split-second decision" and one she regretted.

"She concedes she was binge-drinking."

McAdie certainly had been drinking "too much" on the night of the assault, Mr Lingham said.

She had a breakdown in her relationship about six or seven weeks before and had also been suffering from mental health issues, for which she was pursuing private psychiatric treatment.

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McAdie pleaded guilty to assault occasioning actual bodily harm.

Mr Brender was scathing of McAdie's assault, which he described as an "aggravated" attack.

"You can't have people doing that in public," he said.

The court was told how police heard a "slapping noise" outside Beer Deluxe on May 26 about 12.15am, then the sound of a woman falling to the ground "screaming that she couldn't see" near the front entrance.

"Police turned to see a female person on the ground crying."

The victim was comforted by a man, then security pointed out McAdie to police.

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McAdie's attack was captured on the hotel's CCTV network.

Police immediately spoke to the victim, who had swelling to her right eye, and took her to Albury police station to make a statement.

The victim said she was standing out the front of the hotel when McAdie yelled "you're a slut".

She replied with "what?" and McAdie answered: "You slept with my boyfriend."

McAdie then punched the victim to the right eye.

When told about the victim's injuries, McAdie said: "I'm glad she slept with my boyfriend."

Mr Brender convicted McAdie and placed her on a 12-month community corrections order.

He imposed the condition that she obtain psychiatric treatment.

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