Even though Ian Somerhalder and Nina Dobrev's relationship was over a long time ago, there are rumors that the actor's wife, Nikki Reed, is allegedly worried that he's still in love with his former leading lady in "The Vampire Diaries."

According to Celeb Dirty Laundry, Ian Somerhalder reportedly unfollowed Nina Dobrev on Twitter and there are two speculations on why he did. First, he could purportedly be jealous over Nina Dobrev and Austin Stowell's budding relationship. The second speculation is that Nikki Reed could have made her husband unfollow Nina because she's worried that he might want him back.

"Ian Somerhalder is supposed to be happily married to Nikki Reed, but it sounds like he could be a little jealous that his ex-girlfriend Nina has moved on," Amanda Austin wrote in her article. "Is it possible that Ian still had feelings for Nina, even after his wedding to Nikki, and was crushed that she began dating Austin Stowell so he unfollowed her?"

"Ian Somerhalder could be jealous of Nina and Austin, but it is probably more likely that his wife Nikki Reed is jealous of Nina. Insiders have dished on more than once occasion that Nikki was extremely insecure, and constantly paranoid that Ian would cheat on her with Nina while they were on the set of The Vampire Diaries."

If Ian Somerhalder is indeed still into Nina Dobrev, then he may have a reason to get jealous because it seems that his ex-girlfriend is very much in love with her current boyfriend.

Hollywood Life reported that Nina Dobrev is very happy with Austin Stowell and very proud to be his lady. "Nina introduced Austin as her boyfriend to people who didn't know him," a source reportedly said. "Most of the people there knew each other. They were glued to each other. Either holding hands the entire time to they had their arms around each other. They both seemed really happy, especially Nina."