Robert Durst, 73, is accused of murdering his friend Susan Berman in Los Angeles in 2000.

Robert Durst didn’t let his pending homicide case kill his dreams of future romance.

The New York real estate heir gave a whopping $300,000 to a much younger female friend within days of his March 2015 arrest in New Orleans and later discussed building a "love nest" with her, the pretty pal from upstate New York said in a Los Angeles courtroom Wednesday.

Susan Giordano, 50, said she and Durst spoke by phone multiple times a week after he was arrested in the Big Easy on suspicion of killing his best friend Susan Berman on Christmas Eve 2000.

"Did you and the defendant ever talk about getting your love nest?" Los Angeles County Deputy District Attorney John Lewin asked Giordano during the tense court exam.

"Yes," Giordano testified in a whisper.

She said the plan was for Durst, 73, to move into a property near her place in Campbell Hall, N.Y. She would have an art studio in the building and he would live there, she said.

Giordano admitted telling Durst she loved him but claimed their relationship was not sexual.

Robert Durst: A sordid timeline of events

"It is platonic," she testified.

"I am very good friends with the defendant," she added. "I just thought we would be able to take care of him as a family."

Durst watched the testimony with a straight face after having turned around to wave at Giordano Tuesday afternoon.

Giordano was questioned as part of a dispute over boxes of Durst’s personal paperwork that authorities seized from her Hudson Valley basement in 2015.

Investigators want to go through the scores of boxes and say Durst waived any claims to attorney-client privilege when he allowed producers and crew for the HBO docu-series "The Jinx" to rifle through the paperwork to find a legal transcript related to his estranged brother Douglas Durst.

Durst’s defense team claims the paperwork contains privileged content that should be off limits.

She said the plan was for Durst, 73, to move into a property near her place in Campbell Hall, N.Y. She would have an art studio in the building and he would live there, she said.

Giordano was called ahead of a "secret witness," who is due to testify this week, as one of two witnesses giving early testimony in his pending murder case.

Both witnesses are older than 65, so prosecutors asked to "preserve" their testimony in the event they become ill, die or get bumped off by Durst before his expected trial.

Durst’s legal team have called it "absurd" to believe Durst poses a threat to witnesses.

He has pleaded not guilty to killing Berman.

A New York doctor testified Tuesday about a phone call he received in 1982 from a woman claiming to be Durst’s first wife Kathie Durst.

Prosecutors claim Durst killed Kathie and then shot Berman in the back of her head 18 years later because she knew details about the slaying and was set to speak with New York investigators.