Usher, Chris Brown Usher, Chris Brown

Chris Brown and Rihanna may or may not be back together, but one thing is for certain: Brown appeared to have the time of his life jet-skiing in Miami during their "reconciliation" weekend — behavior that has rubbed fellow R&B crooner Usher the wrong way.

"I'm a little disappointed in this photo," Usher says about the shots of Brown in a video for Jermaine Durpi's "Live the Life" series. "After the other photo [of a bruised woman TMZ reported was Rihanna]? C'mon, Chris. Have a little bit of remorse, man. The man's on jet skis? Like, just relaxing in Miami?"

Brown and Rihanna reportedly stayed at one of Sean "Diddy" Combs' homes on Star Island over the weekend. Rihanna was not spotted.

Brown is scheduled to be arraigned Thursday on charges of making criminal threats to a woman, widely reported to be Rihanna, on Feb. 8. Police have not identified the woman.

Brown said he was "sorry and saddened" a week after his arrest. Rihanna has declined to comment on the arrest, but thanked her fans for the support "she has received during this difficult time."