Rihanna's friends are concerned that she can't let go of Chris Brown as he is the "only man she ever seems to have really loved".

The pair ended their relationship around three years ago after an argument turned violent. Chris was charged with assaulting the pop beauty and served with a restraining order. Recent reports have suggested that the former couple have been "hooking up". Chris and Rihanna were even spotted partying at the same nightclub as each other.

Friends of Rihanna say the songstress has found it hard to move on following the messy split, but knows that being apart from the musician is probably best for her career.

"She knows how disappointed her fans not to mention her family and friends would be if she took him back," a source told Closer magazine.

"But Chris is the only man she ever seems to have really loved."

Rihanna is now in contact with Chris after a period of not speaking. Those closest to the gorgeous star are anxious that she'll fall for him all over again.

"They are still in contact and, while they don't speak often, she's met him a few times. Friends are concerned she may believe Chris is a changed man," the insider added.