The quality of Chris Brown's love life has seemed to steadily plummet since the infamous incident with Rihanna. The newest development in the saga is the reported breakup of Brown and his girlfriend Karrueche Tran. To muddy the situation further, Brown ended it because Tran supposedly had contact with arch-nemesis Drake. It only appeared to be business talks, but Brown clearly didn't take kindly to it. The two had recently been seen acting strange and distant, so it isn't a huge surprise.
Source: karencivil.com