A bitter boyfriend launched a hate campaign when his girlfriend left him for another woman.
Daniel Walmsley, 24, warned Laura Nicholson and Amy Keel he would put them “in a box” during a series of sinister texts and told his ex she would get a bullet in her face.
When Miss Keel arranged to meet Walmsley to try and smooth over the situation, he rammed her car with his and left her fearing for her safety.
Both women were left fearing for their lives because of Walmsley’s threats.
Newcastle Crown Court heard Walmsley and Miss Nicholson had been in a long relationship which broke up when he was sent to prison for robbery.
While he was inside, Miss Nicholson got together with Miss Keel.
Miss Nicholson then rekindled her relationship with Walmsley when he was released on licence.
But within weeks she was back with Miss Keel and Walmsley’s hate campaign started.
Prosecutor Paul Rowland told the court: “That really was the catalyst for Mr Walmsley to begin sending threatening messages.
“He turned up at the address and threatened Miss Nicholson ‘if you get back with Amy I will put you both in a box’.
“He text her suggesting he was going to put a bullet in her face, that he was going to do time for her, messages of that nature.
“This carried on for some time.”
The court heard the taunting texts continued after Walmsley rammed Miss Keel’s car, with him saying ‘you are going in a box tonight’.
Mr Rowland added: “Both victims said, in view of the threats, they were in fear for their lives.”
Walmsley, of Waskerley Road, Washington, admitted making threats to kill, dangerous driving and driving while disqualified.
The court heard he has been recalled on licence from the robbery sentence.
Judge Deborah Sherwin sentenced him to 28 months behind bars for the hate campaign.
The judge told him: “I understand it must have been upsetting, to put it mildly but you are now allowed to take the law into your own hands or behave in the way you did.
“You set about a campaign of issuing threats to kill towards the two of them, bombarding them with text messages.”
Glen Gatland, defending, said Walmsley had been doing well while out on licence and had got back with Miss Nicholson after a chance meeting with her.
Mr Gatland said Walmsley had looked forward to being a family once again.
Walmsley said he then found out, via a Facebook message from Miss Keel, that his relationship with Miss Nicholson was over.
Mr Gatland said: “It was all caused by the break down of the relationship and the hurt he obviously did feel.”