After sorting out differences with his ex-Kristen Stewart, Robert Pattinson was caught flirting with a fashion designer at a party in L.A. It seems Pattinson is passing his time with top notch celebs as Kristen is busy shooting for a film in New York.

R-Patz was invited to fashion soiree for Givenchy creative director Riccardo Tisci and fashion photographer Marcus Piggott. During the party, Pattinson had a great time talking to Fashion designer Eva Chow and they even posted an Instagram photo together with a caption "Rob & Eva! What a Night!"

Robert Pattinson has been caught partying many times since his break-up with Kristen Stewart. But now that he has reunited with Stewart, we wonder why he was flirting with Eva.

The "Map To The Stars" star is also rumoured to be in a serious romantic relationship with Sean Penn's daughter Dylan Penn, and was reportedly seen partying with her in VIP area at Spare Room in L.A.

According to sources to Hollywoodlife.com, "Robert Pattinson wants to keep his relationship with Dylan Penn under wraps. Rob hasn't had such strong feelings for someone since Kristen. But he's taking the relationship very slowly and wants to keep this new relationship out of the public eye. This really came out of left field for Rob - he wasn't looking or expecting any kind of long term romance."

Robert Pattinson has also planned a private vacation to Hawaii with Dylan and clearly K-stew is not happy with it. A source has revealed that, "Kristen is really upset that Rob has planned a romantic break with another woman. Rob still loves Kristen but he doesn't think it can work between them, he believes they both need a fresh start."

It seems Robert Pattinson is spending his time with various women to get a clarity of mind and if source are to be believed than he is not serious about anybody.