Chris Brown and Rihanna have had their fair share of ups and downs – mostly downs (we all know what I’m referring to, right?). But even with their rocky past, Rihanna still feels like she owes a lot to her ex. The 26 year old songstress is apparently grateful for a lesson in humility passed on to her by Brown. But on the other hand, she’s not too happy about Brown's new flame, Karrueche Tran.

A source told HollywoodLife.com, “Chris Brown broke her heart and stomped on it when he brought Karrueche into the picture. Rihanna didn’t understand why Chris made her compete with another b***h. Like, she’s Rihanna. She could have any dude.”

The source went on to say, “On the real, the one thing Chris did for Rihanna, which she will forever be thankful for, is that he humbled her. He was the first man to let her know it’s not always about her.”

Unfortunately, Chris’ relationship with Karrueche does not seem to be coming to an end anytime soon. In fact, Chris even mentioned that he would like to marry Tran one day. Hard luck RiRi!