Chris Brown’s love life has been a topic of headlines lately but rumor has it that there is one ex he regrets losing the most.

And that would be none other than Rihanna.

Fans remember their seemingly perfect relationship took a dark turn when he brutally attacked her back in 2009. But they have reunited a couple of times since then, even reportedly while he was dating his recent ex, Karrueche Tran.

But rumor has it that he regrets losing Rihanna and that might never change.

And he was telling his friend Justin Bieber about it.

One insider told Hollywood Life Wednesday, “Chris knows he lost the love of his life with Rihanna and he doesn’t want that to happen to Justin.”

He said that Bieber should try to fix things with his on-and-off girlfriend Selena Gomez, before it’s too late.

“Chris told Justin that the universe doesn’t make women like Selena and Rihanna often. He told Justin he’d better latch onto this woman and hold her down, otherwise, he’ll regret it for the rest of his life, just like Chris regrets losing RiRi.”

But Bieber has also been linked to women like Hailey Baldwin lately.

“Chris is sitting back, looking at Justin’s antics and shaking his head. For starters, Justin is acting like a younger Chris—arrogant, womanizing, breaking hearts and acting like his s*** don’t stunk. Chris wants JB to know that ain't cool and that he’d better stop juggling these girls like he’s a circus before he loses the love of his life.”

There might be hope for Bieber and Gomez, who are known as Jelena to their fans. Word is they’ve been contacting each other lately.