Rihanna disses Karrueche Tran, Drake's girlfriend over drama, claims troubled ex Chris Brown is model's 'problem' now

Apparently, Rihanna's in a rather happy relationship with rapper Drake. She's totally over ex-boyfriend Chris Brown - he's Karrueche Tran's problem now!

Breezy's back in jail for another month after violating probation earlier in March. RiRi will always have feelings for the "Fine China" crooner, but she's over all of the drama. Good luck, Tran!

“It’s sad and it’s unfortunate for him. She hopes he changes and gets better but that burden is no longer for her to bear. He has a woman now, a good one it seems, and that’s her responsibility to care and think about all the issues in Chris life, both good and bad,” an alleged insider tells HollywoodLife.com. “That’s no longer Ri’s job and she’s elated that she doesn’t have to work that long, tiring up and down shift anymore.”

It's good that the "Diamonds" songstress is finally over her ex, and it looks like she wishes him the best. But that doesn't mean she has faith that he'll truly change his ways:

"All that is out of Ri's hands and she's become a better, a more proud person as a result. There's no shade on her part in any way, she's just moved on,"  the source explains.

Meanwhile, Tran is stuck with the hard decision to stick it through with Breezy, or leave him for good. Rumors initially suggested that they broke up because the singer cheated on her, but for some reason, they just can't let go of the relationship. Sound familiar?

"This is how it is," a friend close to Breezy tells HollywoodLife.com. "He's a rap star - rich and famous, and girls try to get at him every which way." 

What will happen with Rihanna, Drake, Chris Brown, and Karrueche Tran in in the long run? Stay tuned...