Robert Pattinson and Nikki Reed hooking up?

Nikki Reed is DATING Robert Pattinson ?! Kristen Stewart and her boyfriend Michael Angarano have been double dating with Nikki and Robert. After Michael and Kristen left, Nikki and Robert left, their arms wrapped around each other. Nikki supposedly spent the night with Robert. She was supposed to be back in L.A. on Monday but she never showed up. Is this going to be a problem for upcoming movies based on the Twilight Saga? YOU DECIDE!