Is Nina Dobrev's secret boyfriend her ex-beau Derek Hough?

According to International Business Times, she could be hooking up with the 'Dancing With The Stars' professional dancer again after being spotted together in several parties recently.

The ex-lovers were reportedly seen together at a recent Halloween party in Los Angeles. They were also seen being quite flirty with each other at another party at the Roosevelt Hotel earlier in September.

"He took her and grabbed her and started dancing with her, basically throwing her around and she loved it," Hollywood Life quoted a source as saying about the September 17 party.

The insider added, "They were talking close and holding each other and she was laughing at everything he said, she was enamored and definitely was equally flirting with him and he was really trying to impress her."

Whether it is Derek Hough or not, gossip sites are in agreement that the 'Vampire Diaries' star wants to keep her new relationship a secret.

Why does Nina Dobrev's secret boyfriend have to be protected from the press?

One reason could be the several dating rumors that linked her to several male celebrities following her split with Ian Somerhalder. She, herself, poked fun at the said rumors but such attention might have pushed her to crave a bit more privacy for her actual love life.

Another reason, according to Celebrity Dirty Laundry, could be the 'Vampire Diaries' fans that are still waiting for her and ex-boyfriend Ian Somerhalder to get back together.

She allegedly didn't want to disappointment her fans, which has somewhat become a moot point since Somerhalder has been gushing about how much he loves his new girlfriend, Nikki Reed.

Perhaps Derek Hough could be her Nikki Reed as well?

Who do you think is Nina Dobrev's secret boyfriend? Do you still want her and Ian Somerhalder to get back together?