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30/04/2013 11:13 BST

Chris Brown Unfollows Rihanna On Twitter - Are These Pictures Of Her Kissing A Mystery Man To Blame?

The rumour mill has gone into overdrive after Chris Brown unfollowed Rihanna on Twitter (which we all know spells it is O-V-E-R), and we think we know what has driven him to it.

Just call us Sherlock Holmes.

Snaps of Rihanna smooching a man who is not her badboy lover have emerged, as she partied in New York on Sunday night following her Diamonds world tour stopping in the city.

Justin Laboy uploaded a picture of himself cosying up to the star on Twitter as the two got friendly in a club.

"Me and my wife @Rihanna out here tonight," he wrote alongside the snap of him pecking Rihanna on the cheek.

Just a few hours after the photos were posted, Chris unfollowed Rihanna on Twitter, and posted some cryptic messages.

“Just remember to keep ya m*******kin head up!” he wrote.

And if that wasn't enough, he then followed his ex Karrueche Tran.

She then wrote on the social networking site: “How you stay faithful in a room full of h**s?”

What an earth can this all possibly mean?!

Photo gallery Rihanna's 25 Most Controversial Moments See Gallery
Photo gallery Rihanna See Gallery