The 50-year-old man, who cannot be named because that could identify the victim, pleaded guilty in Warrnambool Magistrates Court on Thursday to family violence-related offending.

The court heard he was in a casual relationship with the victim for about six months until September when the pair ended the relationship and a family violence intervention order was put in place, prohibiting the offender from speaking to her or attending her property.

Then on three occasions this month he was observed at the woman's home or speaking with her in the main street of Warrnambool.

On Thursday, the man was walking on Warrnambool's Fairy Street when he was approached by the victim.

They spoke, he walked her to a bus stop and then back to her house which he entered and remained inside for about an hour.

All of the interactions with the victim breached the court order.

The man was arrested on Thursday and conveyed to Warrnambool police station.

Magistrate Mark Stratmann said it was offending that was aggravated by the man's 13 pages of criminal history.

"Most of which are contraventions of family violence intervention orders," he said.

Lawyer Jess Dean said it was "certainly conceded that his criminal history does not put him in a good position".

She said the majority of the man's prior criminal history related to a different victim.

She said the recent offending took place in "the context of a somewhat challenging relationship" and that there were no allegations of physical violence.

Speaking to the offender, the magistrate said he accepted that the victim in the offending had reached out to him first.

But, he said that led the offender "to make some very poor decisions".

The man was jailed for 30 days, with one day already served in custody on remand.

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