Alexandra Crawford feared she would die when Alif Miah callously slit her throat.
He was jailed for eight years yesterday for the apparently motiveless knife attack.
Last night Ms Crawford said: “He told me that he knew my son and that’s why I trusted him.
“I had a sore back and I was sweeping my stairs and he said ‘you shouldn’t be doing that’, so he picked me up and dragged me into my house.
“He was being fine at first but when he came in he pushed me into the bathroom and just cut my throat from one side to the other.
“I still have no idea why he did it.”
Miah “went in and out” of her home and tried to get her to lie about the incident.
She said: “As I was lying in my blood he kept walking over me.
“There was blood everywhere, I think he thought I was a goner.
“But he kept saying for me to tell the police that I’d fallen on my nose if they asked.
“Then he took my keys and kept dangling them above me, to taunt me, and he was in and out of the house again and again.
“He asked me if I wanted a drink but I couldn’t swallow. I just wanted him out but he had my keys.
“I have no idea how long it lasted for because I kept fainting and waking up.”
Ms Crawford was initially reluctant to report the incident to police and it was only when medics saw her injuries that she went to hospital.
She said that Miah had told police that her son had been behind the attack.
She said: “They found the knife with my hair and blood on it but he told them that it was my son who did it.
“He knew what he did to me or he wouldn’t have pleaded guilty.
“I just hope I never see him again in my life.”
Ms Crawford said that she was now “scared all the time” after the attack over a year ago.
She said: “I’m scared to open the door because I don’t know who will be behind it.
“I’m scared to answer the phone if I don’t know the number and I nearly never go outside the house now.
“It’s completely changed my life.”
Ms Crawford added: “I’m overjoyed with his sentence – couldn’t be happier.”
A neighbour of Ms Crawford said: “I hope he feels every second of those eight years.
“It was close to being murder.”