Chris Brown and Karrueche Tran may be off-again soon, after Tran reportedly was not pleased with Brown paying more attention to his friends than to her this past weekend. The 24-year-old performed at the annual Summer Jam concert in New York on Sunday and partied with an entourage after at Pink Elephant nightclub.

While Tran was by his side, she did not look too happy to be there. A source told Hollywoodlife, “Chris Brown partied at Pink Elephant in NYC on Sunday night after Summer Jam, where he came in with an entourage of 20. This included his on-again-off-again and now seemingly on-again girlfriend, Karrueche Tran. Brown took over an entire corner of the club and stood on a banquette dancing for the whole club to see. He looked like he was on top of the world, but Karrueche didn’t look as thrilled.”

Brown broke up with former girlfriend Rihanna last month and quickly moved on with Tran, who he had dated before for two years.

“The way I look at it is ... I’m always going to love that person, but people have differences, and people have different wants and needs,” Brown recently said in an interview on “The Kyle & Jackie O” radio show regarding his split from Rihanna.

But though Brown is now back with her, it seems Tran is still not too happy with Brown’s latest antics. “He was having too much fun with his friends and looked like he wasn’t paying enough attention and spending enough time with her,” the source continued.

To make matters worse, following his night out Pink Elephant, Brown proceeded to go to EVR nightclub and headed back to his tour bus in the early morning hours with a number of women from the party.

Meanwhile, Rihanna has just debuted a new remix to rapper Wale’s hit song “Bad” and is on her Diamonds World Tour.