An obsessed man stalked and spied on his former partner, who discovered a ladder propped against her bedroom window, a court heard.
Darren Pick (51) left her depressed and in fear after jealously threatening: "If I ever catch you with another man, I'll kill you and him."
The victim was said to have retaliated by posting indecent images on Pick's Facebook page, of a pornographic home movie they had made together in happier times.
Leicester Crown Court was told the publishing of "shocking" images of Pick in a compromising situation "had not assisted in his coping with the breakdown of the relationship".
Pick, of Beaumanor Road, Leicester, was jailed for 18 months after admitting putting a person in fear of violence by harassment, by following his ex-partner, spying on her, forcing contact upon her and restricting her freedom, between June and December last year.
Balraj Bhatia, prosecuting, said the victim, a mother of five whose marriage had broken down, took the defendant in as a lodger at the end of 2013, before they began a relationship, which broke down in about April or May last year.
He said: "Pick was very controlling and wanted to know at all times where she was and who she was with."
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From June to December, Pick's conduct, on seven or eight occasions, caused her "anxiety and concern" as he tried to maintain contact, by finding out where she was and making threats, including "I've left a trap at yours."
Mr Bhatia said: "She took that message to mean he was capable of damaging her property, herself or her children."
He would keep watch by parking his van near her home and a property she was developing – and texted her messages such as "slut".
He bombarded her with 48 missed calls on one night.
She found a ladder propped against her bedroom window and one of her children also reported seeing light from a torch at night in their room.
Officer in the case DC Rachel Minton told the judge the victim feared going out alone and was now "petrified of men".
In a statement read by the prosecutor, the victim said she was "paranoid" Pick was watching her, and there was no reason for step ladders to be against her bedroom window other than to view her from close quarters.
She had changed from being "confident and bubbly" to a "nervous wreck", she said.
Pick has a previous conviction for harassing another former partner in a similar fashion, the court was told.
Sentencing, Judge Robert Brown said: "You thought she was your possession and you dominated, controlled and intimidated her, resulting in clinical anxiety and depression.
"I'm told you've now moved on… I hope you've now let go of this woman."
He made an indefinite restraining order banning any future contact.
Steven Newcombe, mitigating, said: "He clearly has difficulty coming to terms with the end of a relationship."
He added: "This couple had previously filmed themselves in a private pornographic film and on an occasion when they fell out the complainant, with the assistance of her son (aged 14), uploaded images onto the defendant's Facebook account.
"It was deleted and, according to the son's statement, re-posted.
"The defence team have viewed it, and for that to be made public is in itself quite shocking and it didn't assist in his coping with the break-up."
