K-Stew 'can't let go' of her Twilight co-star

Kristen Stewart is reportedly hurt by rumours surrounding Robert Pattinson and Katy Perry‘s relationship.

Rob, 27, has been spotted hanging out with Katy a lot lately – the pair were seen at a Bjork concert last weekend and even watched a wedding rehearsal together last month.

But the speculation about their growing friendship has upset Kristen, who friends say is feeling ‘incredibly down right now and betrayed’.

K-Stew was previously pals with Katy, 28, and was even snapped sitting on her lap at the Nickelodeon Kids’ Choice Awards in March but she’s now said to have cut ties with the singer.

Kristen, 23, split from Rob last month but pals say she’s struggling to cope with the break-up and is desperately trying to make contact with R-Pattz.

Kristen is in a certain state of denial. She can’t let go of Rob or get over him,’ a source tells Mail Online.

She keeps trying to contact Robert and find out what he is doing but her attempts to see Rob have been rebuffed. Rob is not responding to her.’

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Anna Francis