Are Zac Efron and Vanessa Hudgens Back Together?

So much for those Rumer Willis rumors.Just weeks after they shocked the celebrity gossip world with their split, Zac Efron and Vanessa Hudgens looked to be back together at last night's SHG's Eden Hollywood opening.They were "constantly touching and kissing each other," a witness told People. Are Zac Efron and Vanessa Hudgens Back Together?Zac Efron and Vanessa Hudgens arrived together (