Rihanna and Chris Brown are back together

R&B singer Chris Brown and Rihanna are back together three weeks after he allegedly assualted her, the people.com reported.

"They're together again. They care for each other," a source told the magazine.

Rihanna is reportedly spending time with Brown at one of Sean "Diddy" Combs's homes, on Miami Beach's Star Island.

"While Chris is reflective and saddened about what happened, he is really happy to be with the woman he loves," the source said.

Brown, 19, who was arrested for allegedly assaulting 21-year-old 'Umbrella' singer, was charged with making criminal threats following an alleged attack on Rihanna after a pre-Grammys party on February 8.

Since the incident, Brown was trying hard to get back to Rihanna by showering her with expensive gifts. He even called Rihanna on her 21st birthday a week ago to apologise.

"He called to wish her happy birthday. They've reached out to each other. It's been mutual," a source said.

The singer was booked by Los Angeles Police for making criminal threats, but the case has not yet been presented to the District Attorney.

The incident took place on the Grammy's eve on February 8 when the pair started an argument while in their car over a text message sent to Brown by an undisclosed woman.

The argument escalated in to a fight which left Rihanna with a swollen and bruised face.