If you hoped Nina Dobrev was rebounding with Zac Efron, boy, do we have some heartbreaking news for you! We didn't expect her to spark romance rumors so fast - not after going through such a heartbreak and ending her engagement to Shaun White! And yet she did with none other than the Hollywood hunk! They were spotted on a couple's vacation with Miles and Keleigh Teller and Chace Crawford and his girlfriend Kelsey Merritt in Italy earlier this month! Related: Jennifer Aniston 'Having Second Thoughts' About Jim Curtis Romance! After all the rumors swirling around about the snowboarder (and rumor...