James “Whitey” Bulger’s longtime girlfriend is roughing it with relatives of the slain Boston mobster — in a posh Massachusetts town — as she finishes the last year of her home confinement sentence, according to a report.

Catherine Greig, 68, has been living in the four-bedroom, Colonial-style Hingham home owned by a daughter and son-in-law of Bulger’s brother, William Bulger, the former president of the Massachusetts Senate and the former president of the University of Massachusetts, the Boston Globe reported.

Greig, who was spotted on the property walking a black dog, declined to comment Thursday when she was approached by a Globe reporter.

In June, Greig was released from federal prison, where she had been behind bars since 2011 for helping Whitey Bulger evade capture for 16 years.

She’s serving the last year of her eight-year sentence — which ends on July 23, 2020 — in home confinement.

The restrictions of Greig’s home confinement are unclear as Greig had returned Wednesday to her hometown of South Boston for a visit with her twin sister, Margaret McCusker, according to the news outlet.

“She’s doing good,” McCusker told the newspaper Thursday. “I was so excited spending time with her.”

McCusker added that Greig is devastated by the slaying of Whitey Bulger, who was bludgeoned to death with a padlock stuffed in a sock on Oct. 30, 2018, hours after being transferred to a federal jail in West Virginia.

“She cries a lot about it,” McCusker said, noting that Greig does not believe Whitey Bulger was guilty of the crimes he was convicted of. “She misses him … She wishes he was back here. She loved him very much.”

Meanwhile, on Thursday, Greig’s attorney, Kevin Reddington, told the Globe that his client “served her time” and “paid her debt to society.”

Reddington said Greig “should be able to move on and live her life with happiness.”

Last week, the family of Whitey Bulger — who was convicted of 11 murders and other crimes — filed a $200 million claim against the Justice Department, charging that the government was responsible for his death, according to the news outlet.