Television presenter Justin Lee Collins' relationship with an ex-girlfriend accusing him of harassment brought out "the demon" in him, a court heard.
Collins, 38, had a seven-month relationship with video games public relations worker Anna Larke last year.
A jury at St Albans Crown Court, in Hertfordshire, yesterday heard a secret recording Ms Larke, 38, made of the entertainer verbally abusing her during a row last July.
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