Rihanna recently visited Chris Brown in rehab, prompting his girlfriend Karrueche Tran to dump him.

Yeah, this should end well.

A source told the New York Daily News that in late January, Rihanna flew on a private plane to visit Brown at the Malibu rehab center where he is serving a court-ordered stint in an anger management and drug recovery program. She supposedly spent a few hours at the center with Brown, and then jetted back out of town.

When Tran -- Brown's other on-again, off-again girlfriend -- found out, she dumped him, of course. Because that would be the healthy response in a situation in which everyone makes really good choices.

"With Chris in rehab, (he) and Karrueche spoke every day and she stood by his side. She took a vacation to Turks and Caicos and told friends the entire time that they were really good and happy together," the source told the Daily News. "She trusts Chris, but when it comes to Rihanna, she has a zero-tolerance policy. Then she found out about the trip."

Apparently, she no longer trusts him.

Oh, and the insider says Tran hates Rihanna. Go figure.

Brown apparently wasn't the one to spill the beans and initially denied that he saw Rihanna.

"She believed him, but he finally admitted that Rihanna had come to see him. She put her foot down and cut him off completely," the source said.

I wish I had something better to care about.

On March 5, Tran tweeted, "Not dating anyone stop w the bs."

Yes ... please.

Rihanna's rep reportedly did not return the newspaper's attempts to garner comment for the story. Brown's rep called the visit a "rumor" and declined further comment.

Contact Tony Hicks at Facebook.com/BayAreaNewsGroup.TonyHicks or Twitter.com/insertfoot.