Robert Pattinson feels like he has had ''his heart ripped out'' by Kristen Stewart.

The 22-year-old actress - has confessed to cheating on Robert, her boyfriend of almost four years, with her 'Snow White and the Huntsman' director Rupert Sanders - and friends say they don't know if Robert will ever recover.

A source told People: ''The entire thing has been such a blow to Rob. Talk about having his heart ripped out. Rob just isn't going to be able to get past the cheating - one time or not.''

This insight comes after it was claimed Robert, 26, feels as if he has ''nobody to talk to'' and has left friends worried by sharing his woes with fellow guests at the hotel where he is temporarily staying.

One pal said: ''Robert has resorted to asking strangers out to keep him company.

''He went out for drinks with a woman staying in his hotel and he told her it was 'ridiculous' he had nobody to talk to.''

The hunk has also been spending a lot of time alone trying to forget his relationship difficulties.

The source added: ''He's been spending most of his days off just playing computer games.''