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Bella Hadid and Selena Gomez

Most recently, Bella Hadid and Selena Gomez' unfollowed Selena on Instagram after pictures emerged of the Texan beauty cosying up to The Victoria's Secrets her ex The Weeknd. Ouch!

Top Ten Celebrity friendship break ups

Friendship fallouts sometimes hurt more than romantic ones. And in the fickle world of 'celebrity BFFs' social media is where the first punches are inevitably thrown.