Karrueche Tran criticises Chris Brown and his 'lack of loyalty'

Karrueche Tran thinks ex-boyfriend Chris Brown should man up.

The 27-year-old model slammed the 26-year-old rapper Sunday on Instagram after Brown criticized her for discussing their relationship in an interview with Access Hollywood. Tran broke up with the star in March after discovering he fathered a daughter named Royalty.

"Honestly, it's so [expletive] pointless to keep doing interviews about me," he commented on a clip from the interview. "Talk about your career. Da [expletive] you keep doing interviews for. Yes. I have a daughter. And I'm gonna man the [expletive] and take care of her."

Tran responded by pointing out Brown had also talked about their relationship in a recent interview with Ryan Seacrest, and said she answered questions about the rapper because she is a "mature adult" who doesn't "shy away from something [she's] lived through."

"I'm not speaking on you or bashing on you (like I easily could)," she wrote. "Don't be mad at me because our relationship is over due to your lack of loyalty. You know what's weak?? You forcing yourself into my car.. my broken window.. blowing up my phone.. trying to shower me w gifts."

"Man the [expletive] up and change the bs in your life like I've told you several times," she continued before listing her various projects, including Vanity on StyleHaul.com and blip.tv drama The Bay. "Best of luck to you and beautiful Royalty."

Brown followed up by sharing a photo of himself and Tran on Instagram, writing, "I'm eternally thankful for you being in a part of my life. I've learned so much from you. I wish u nothing but happiness and the best. @karrueche all I was doing was trying to fight for the woman I love. Thanx I learned a lot."

Tran and Brown were and on-again, off-again couple for several years, and previously broke up due to Rihanna-over-Chris-Brown/5091405371517/" target="_blank">the rapper's lingering feelings for ex-girlfriend Rihanna. He appeared hopeful for a reconciliation with the model in the Ryan Seacrest interview, telling the host he still loves Tran.