Is Kim Kardashian fanning an old flame?

Well, it may have looked that way when Kardashian and ex-boyfriend Reggie Bush were spotted on a lunch date at the Beverly Hills Hotel last weekend. 

But a source tells People magazine the reality star and NFL pro are just friends.

"They don't know what will happen," the source says. "They're taking it slow. They love each other so much and miss each other, but their relationship is so complicated."

After Kardashian's failed 72-day marriage to Kris Humphries, she might want to ease back into the dating scene.

"Things are up in the air," the source adds. "Kim very much wants to take her time and be single and heal from her divorce."

Tags: Kim Kardashian