Prosecutor Peter Shaw at St Albans Crown Court today told the jury that Collins, 38, had made Larke chronicle every sexual experience of her life for a notebook he kept.
It is alleged that Collins made Clarke close her email, Facebook and Twitter accounts and also throw away her DVD collection because she found some of the men in the films attractive.
Shaw told the court: "The main part of that relationship was characterised by this defendant exerting control over her, verbally abusing her and physically assaulting her.''
Collins is alleged to have compiled a "dossier" on Larke in a notebook.
"The purpose of the notebook was to list every sexual experience with every one of Ms Larke's previous lovers or partners," Shaw told the court.
"He would ask her questions and then write it down. She felt it was a disgusting thing to have to do and she was worried that she would lose him by doing it."
One entry in the book recounted that Larke allowed a man to slap her, but she added that she found it unpleasant and did not want to do it again.
The prosecutor added: "Once, when the defendant lost his temper with Ms Larke, he slapped her in the face.
"He told her in effect that she must like it in a sexual way because she had allowed a previous boyfriend to do so. He wanted to know from her why he couldn't slap her in the face."
Collins was also accused of pulling Larke's hair, pinning her down and spitting in her face during a holiday in Miami in March 2011 and throwing a sat nav at her in June 2011.
After a row on July 2, Larke recorded an argument after Collins allegedly accused her of "fancying" a man at a pub when she said that she wanted to be held in the same manner he was hugging his girlfriend.
"You f**ked up at the pub," Collins was heard saying in the clip played out in court.
"When you're f**king with me, you look at the f**king ground, you look at a tree, you look at a bench, you look at any f**king inanimate object, you do not look at any other f**king human being, you slag, do you understand?"
On the tape, Collins accuses Larke of being "very promiscuous", adding that she had had unprotected sex "on a train with different ethnicities" including "blacks and f**king ch**ks".
Collins denies harassing his ex-partner and causing her fear violence between January 1 and August 1 last year.
The case continues.