Chris Brown, girlfriend call it quits?

Rapper Chris Brown has reportedly

broken up with girlfriend Karrueche Tran.

The pair has apparently split over Brown's ex girlfriend Rihanna as Tran was upset with him for liking two of his pictures posing with the R&B singer, reported Aceshowbiz.

According to the sources, Tran finds Brown immature and she feels he parties too much instead of making music.