Television presenter Justin Lee Collins used details of his ex-girlfriend's sexual past as a "rock" with which to harm her, a court heard today.
Collins, 38, had a seven-month relationship with video games public relations worker Anna Larke, from Hitchin, who is accusing him of harassment.
Prosecuting barrister Peter Shaw told the jury at St Albans Crown Court, in Hertfordshire, that she was an alcoholic, bankrupt and suffering from depression.
"She's all of the above but she's not a fantasist," Mr Shaw said in his closing statement.
"What would cause a woman with a drink problem, living in a nice flat in Richmond with the man she was besotted with, going on international holidays several times a year - holidays that she could ordinarily only dream about, to Miami and New York - having money paid into her account by this defendant, what could cause her to walk out on him?
"What could it possibly be? She wanted to be treated properly."
Collins met Ms Larke in 2006 at the Golden Joysticks Awards which he hosted in London.
The following year they embarked on an affair behind his wife Karen's back, which lasted until 2008.
Ms Larke moved in with Collins in January last year after he left the marital home in Bristol, but problems quickly developed.
The Crown alleges that the bearded, long-haired ex-comic was a controlling, sexually jealous boyfriend who made Ms Larke write down every sexual encounter she ever had.
Collins says the sex list, on which he features at number 37, was Ms Larke's idea to "unburden" herself.
But Mr Shaw told the jury that the book was designed to "Why would a woman choose to do such a thing? You can see the level of detail in that book.
It was to haunt Anna Larke because despite this defendant's assurances about what a good thing it would be to do, he used it as a rock against which any self esteem she did have would be dashed."
Collins, who came to fame with Channel 4's The Friday Night Project, denies harassment