The pictures of Robert Pattinson moving his stuff out of Kristen Stewart's house has made it pretty clear that the Twilight couple have split up but was Katy Perry involved?
According to E! News, insiders claim that Rob's close friendship with Katy was one of the reasons the relationship broke dow,
Speaking to Heat magazine, "Katy was Kristen's friend first, but she gets on with Rob brilliantly. It's clear to everyone that Rob's got a bit of a crush on Katy and she totally plays up to it.
"They wouldn't act on it, but it still makes Kristen feel insecure."
The rumours of the couple splitting for good started this weekend when Rob reportedly cancelled his 27th birthday plan which had been arranged by K Stew.
The Twilight couple have dated on and off for three years but things have been rocky ever since KStew was caught cheating with Snow White and the Huntsman director Rupert Sanders last year.
The split is thought to be pretty nasty with the pair arguing over who would get custody of their pet dogs, Bear and Bernie.
Judging by the fact Rob was snapped with both dogs in his car as he left Kristen's place, we can guess who won that fight.
Do you think this is it for the couple?
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