Chris Brown and Rihanna are rumored to have recently "connected," instantly raising the ire of his former girlfriend Karrueche Tran.

Hollywood Life reports, though Tran considers herself and the "Loyal" singer to be completely over, she's fuming Brown's reconnection with Rihanna confirms to her what she feared most during her roughly four years with Brown.

"Kae always felt Chris was secretly talking and seeing Rihanna when they were together," said a source. "Hearing that they are getting close again just confirms that in her head."

Indeed, things between Brown and the "Umbrella" singer are rumored to be heating up fast. Media Takeout reports an aspiring young singer named Assata recently witnessed the two FaceTiming and "talking as if they were in a romantic relationship together."

At the time, she reportedly posted the evidence to her Snapchat, but it has since been deleted.

In addition, another source also confirms that the two have been in recent contact and are now back together.

"Rihanna is taking it slowly," the source added. "She still loves Chris, and wants to make sure that this time they do it RIGHT."

As for Tran, a source adds she's now focused on her career, "but she can't help but think about Chris. And thinking about him with Rihanna really upsets her."

Recently, Rihanna has been romantically linked with Formula One race car driver Lewis Hamilton. In recent times, the two have been seen all over together, including at the Kadooment Day event as part of the annual Crop Over festival in her native Barbados. There, the two were spied dancing and yachting together.

Even more recently, the two were seen hitting up the New York City hot spot The Griffin in The MeatPacking District and leaving the 1 Oak Club shortly after one another.