After last year’s infamous debacle in which Ray J’s wife accused him of leaving her “stranded” in Las Vegas while eight months pregnant, she’s now keeping a very close eye on him — even while he is alone in quarantine.

In November, Princess Love accused the singer of ditching her and their daughter in a Sin City hotel after they attended the BET Awards, though they later reconciled.

Now, Ray J tells us that he’s in quarantine in a luxury hotel 10 minutes from his LA home to make sure he’s virus-free before joining Love and their kids at home. And Love is making sure he’s isolating properly by keeping an eagle eye on his Instagram, he says.

Ray J tells us that Love wants him to have quarantined for seven days before he can see their children — and he has to start over if he hangs out with anyone.

“I’m lonely right now. I don’t want to quarantine by myself. I keep telling Princess, but she says, ‘If I see one person over there with you, you got to start over,’ ” he says. “So I really have to lock myself in, because I really miss my kids.”

They share daughter Melody Love, 2, and 5-month-old son Epik.

We’re told that Love recently spotted one of Ray J’s Instagram posts in which he was posing less than 6 feet from short-film director Antonio Ward — so she made him start his quarantine over.

“She said I got to put in seven days alone, and I’m good with the seven, but she really want me to do 14, so it’s hard to look at the 13 days left,” says Ray J, who stars in UrbanFlix’s “Pump.”

He even sent us photos of himself looking depressed — while posing in the bathtub of a luxurious marble-clad hotel bathroom.

In November, Ray J posted a picture of the family at the BET Awards, on which Love commented, “Left me and Melody stranded in Vegas and blocked me from calling … now you wanna post family photos.”

She said at the time that she didn’t want to drive back home to LA alone because she was so heavily pregnant.