While rumors and speculation circulated during their relationship, neither Vanessa nor Zac ever confirmed or denied infidelity.
It's important to remember that:
* Rumors can be false: The internet can be a breeding ground for unverified information.
* Private lives should be respected: Celebrities, like anyone else, deserve privacy in their relationships.
Ultimately, the truth about their relationship is only known to them. Focusing on the public speculation about their relationship is unproductive and disrespectful.