I am going on a date with Zach Efron?

So we met at a coffee joint in LA.....he actually approached me and asked for my number, he even said i was hotter than Vanessa Hudgens. So basically he`s picking me up in like an hour to go to ego, and i don't know what to wear. Not to mention I have been getting angry texts from Vanessa. so what should i wear and what should I do about Vanessa we used to be bff`s should i let a guy tear us apart.