It has been years since there were dating rumors between Zac Efron and Vanessa Hudgens. But every time the news strikes about a potential reunion project for the two actors, it seems like many fans of the previous on-screen and real life lovers are still rooting for an off-screen make up as well.

There are a lot of headlines lately regarding the comeback of Efron and Hudgens in the upcoming "High School Musical 4." As expected, many fans of the love team are excited not just because they'll see both actors on the big screen again, but also they are looking into the possibility that the two will be back to each other's arms.

With all this hype that the fans are feeling towards the reunion, rumor has it that Austin Butler (Vanessa Hudgens' boyfriend) is reacting the opposite to what the supporters are anticipating. A report says that Butler is jealous about the situation where his girlfriend works again with his ex-boyfriend.

According to Inquisitr,  the couple reportedly broke up after Butler found out that Vanessa Hudgens is planning to reprise her role on "High Scholl Musical 4". Reports are that the "Grease: Live" actress is pushing her boyfriend's jealousy to the limit if she will work with Zac Efron.

Although everything is still unofficial about the reunion project, some reports are now speculating that Efron and Hudgens are secretly dating already. Without the knowledge of their respective relationship partners, the two are reportedly seeing each other again.

Because of the rumored dates, Zac Efron and Vanessa Hudgens are accused of cheating from their recent lovers.  Reports are that the reunion seems to be the reason why they broke up with Austin Butler and Sami Miro (Zac Efron's ex-girlfriend), Movie News Guide reported.

As of now, everything is still unofficial. There is still no confirmation from Vanessa Hudgens and Zac Efron if they are reprising their role in the upcoming "High School Musical 4." Although rumor has it that Austin Butler and his girlfriend are reportedly on the rocks, there is still no official statement that the two got separated.