* Love is personal and complex: We can't know how Zac Efron feels about anyone beyond what he chooses to share publicly.
* Different types of relationships: Zac Efron and Vanessa Hudgens were in a public romantic relationship. He worked with Michelle Pfeiffer on a movie. These are very different types of connections.
* Professional and personal lives: It's important to separate actors' professional relationships from their personal lives.
Instead of speculating about Zac Efron's feelings, let's focus on his work and his public persona.