John Lennon’s assassin told his wife his plans to murder the Beatle two months before shooting him dead in 1980, according to new reports.

Gloria Hiroko Chapman, wife of killer Mark Chapman told The Daily Mirror that her homicidal hubby revealed his plot after returning to Hawaii from a trip New York.

“He came home scared, telling me that to make a name for himself he had planned to kill Lennon. But he said my love had saved him,” Hiroko, 67, told the British tabloid.

But the wife claims she had no idea Chapman, now 63, was on a murder mission when he returned to New York two months later.

“The only reason I was OK with Mark making another trip was because I had believed him when he said he needed to grow up as an adult and husband, and needed time to think about his life,” she said. “He wanted me to sacrifice being alone for a short time so that we could have a long, happy marriage together.”

Chapman also “lied” to Hiroko about getting rid of his gun.

“He said he threw the gun into the ocean, and I believed him,” she said.

Chapman, who shot the cultural icon four times in the back at close range, will be up for parole for the 10th time on Aug. 20. Lennon, who was 40, bled to death in the arms of his wife Yoko Ono.

But Chapman’s devoted — and staunchly religious — wife has stayed by her husband’s side the last 38 years while he’s been in prison and has no plans to leave him.

The two are allowed to spend 44 hours a year together during visits, and Hiroko said they spend their time making pizzas, watching “Wheel of Fortune” and having sex in a caravan on the grounds of the Wende Correctional Facility in Alden, New York.

After the murder on Dec. 8, 1980, Hiroko said her life changed dramatically.

“I was now Mrs. Mark David Chapman, the wife of a murderer and not just any murderer but one whose victim was known and loved by millions around the world,” said Hiroko.