Karrueche Tran supposedly now fears Chris Brown may have only took to dating her as a way of making previous girlfriend Rihanna jealous.

According to HollywoodLife.com, Karrueche "is now beginning to question her entire relationship" with the "Loyal" singer. The website adds Brown's ex now concedes he "lied" throughout their relationship.

"Chris is a liar," a source told HollywoodLife.

"She doesn't believe many things he's told her over the years," the source added. "One of the big questions she has is whether she was just a rebound chick to Chris, so he could make Rihanna mad. She honestly thinks she could have been a pawn in Chris' deceitful game of manipulation. She thinks he's capable of being that f*cking callous."

Brown and Karrueche publicly split earlier this month after it was revealed the 25-year singer has a love child with a woman who seems to have known Karrueche. All the drama has caused the up-and-coming model to question whether Brown ever truly cared for.

"If he did, he wouldn't have cheated and he damn sure wouldn't have hid the fact he had a daughter," the source added. "The more she thinks about him, the more she thinks her entire relationship with him was a lie from day one. That's so hard for her to swallow, but it's becoming more and more true."

Several media outlets are now reporting Karrueche plans to share her innermost feelings in an interview with relationship guru Iyanla Vanzant on Oprah Winfrey's OWN Network.

A source told HollywoodLife, "Karrueche's not out for Chris' blood. She's telling her life story and what it was like dating Chris amidst all the scandals he had before they met. She thinks it's a great platform for her to talk openly about her relationship with Chris and talk about the things she and him went through together as a couple."