The actress was just a teenager when she met Zac on the set of the first High School Musical back in 2005 and romance blossomed off-screen.
They had one of the most high profile relationships in Young Hollywood at the time and were photographed everywhere.
While most of us would LOVE the chance to date handsome Zac, Vanessa has admitted that she struggled at times dealing with all the attention he would get from women.
She told New York Times: "I went through a phase when I was really mean because I was so fed up. Girls were running after him, and I was giving them death stares.
"Then I realised that's not what that's about. 'Spread the love, be a good person, they support you, be nice.' "
Vanessa and Zac broke up in 2010 after five years together.
She's now living with actor Austin Butler – whom she began dating in 2011 – while Zac is in a relationship with model Sami Miro.
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