Nina Dobrev was spotted at Comic-Con in San Diego this weekend, while she was heading for the Convention Center to promote The Vampire Diaries. The actress attended the famous event wearing a geometric stripes dress by Matthew Williamson, with long sleeves and a fit and flare shape, which she paired with Rupert Sanderson cutout booties and a nude Jimmy Choo chain purse. The actress also wore cat eye sunglasses, which completed the look. Also present at the convention was Nina's co-star and ex-boyfriend, Ian Somerhalder. After the two broke up in May, they claim they're still friends. However, there was visible tension at Comic Con, when Ian “offered” Nina's number to a fan. Apparently, when Nina asked if there's someone Elena hasn't made out with yet, a fan replied that he hasn't. To this, Ian said: “Give me your number. I'll set you up”. That's what you get for breaking the rules and dating your co-worker! The fifth season of The Vampire Diaries premieres this October with plenty of new and exciting twists – if you've been watching the show, we bet you're curious to see what happened to Stefan in the quarry…