Kim Kardashian & Reggie Bush Totally Might Break Up

Are Kim Kardashian and Reggie Bush on the rocks yet again?

The high-profile couple supposedly split - temporarily - last week, according to Radar Online. But the site's alleged sources say the separation could be more serious.

Kardashian flew to Miami to shoot her sisters' reality show, while Bush spent time in NYC shooting a calendar. There, he vented about the pair's troubled romance.

"It was a two hour shoot and Reggie spent most of it texting," a source on the Calendar Guys 2011 set said. "In between photos and costume changes, everyone on the set could tell something was going on. He became a little tense.”

Maybe dating a Kardashian plunges you into a private hell after all.

At one point, Bush disappeared "to use his cell phone in private." After a heated call, Bush openly complained about his relationship with the best body on earth.

Are the days of Reggie and Kim numbered? According to anonymous sources vaguely alleging a feud between them, maybe! [Photo: PacificCoastNewsOnline.com]

Later that night, Bush was spotted at hip N.Y. City nightspot 1Oak, at Robin Thicke's 33rd birthday party where "he was flirting up a storm," according to reports.

He spent the majority of the night with an unknown brunette and talked for an hour straight, said a source. Wow, we might as well stick a fork in Kush right now.

On Saturday, after a lunch date with his agent, the Super Bowl champ told celebrity gossip photographers that he did not even know where Kim Kardashian was.

She was scantily clad on a Miami yacht, natch.

When asked if they were still an item, Bush said "no more questions." Oh boy. That's about good an indication as you'll ever see that these two have no chance.