Chris Brown was caught in another drama after his split from Karrueche Tran as Rihanna's ex boyfriend allegedly lost his passport and could not make the trip to the Philippines for a scheduled concert.

An article from Hollywood Life said that Chris Brown threw shade at Rihanna by saying that his ex is "nothing" compared to Karruche Tran.

But Rihanna is not biting at the obvious diss, according to a source who said that the pop star "isn't paying attention to Chris."

"Look, if that's what it takes for him to make his girlfriend, Karrueche, feel some type of way, by all means, he should go for it. Rihanna doesn't care if Chris uses her if it helps make him happy," the source added.

According to the source Rihanna's ex boyfriend should stop using the pop star to some tabloid headline.

"Rihanna has put her feelings for Chris behind her. He doesn't have the same effect on her that he used to have. She doesn't have any feelings for him. She just hopes he's happy and can hopefully treat Karrueche right," the source explained.

Apparently, Rihanna feels very lucky that she is no longer part of Chris Brown's "bulls---t, and all that drama that came with it."

Chris Brown and girlfriend Karrueche Tran reunited recently after a bad breakup where he dissed her in front of a crowd during a performance.

Meanwhile, Chris Brown cancelled his scheduled performance at the Philippine Arena because he reportedly lost his passport, said MailOnline. The organizer of the event, Maligaya Development Corp., said in a statement that the singer's rep told them he was still in Los Angeles.

"According to them, Chris Brown lost his passport the day before the scheduled event. Hence despite having entered into a contract with us, Chris Brown would not be able to comply with his obligation to perform," the statement said.

Rihanna's ex boyfriend tweeted on Wednesday: "Due to unfortunate circumstances I can't bring in the new year with you...' Too bad since the Philippines Arena is one of the best arenas in the world! Stay tuned Team Breezy!!!! #TeamBreezyManila I'll see you in spring!'