Caesar's Wife Must Be Beyond Suspicion

In 62 b c e, char oclodius invades the ritual dressed as a woman. He manages to get in in drag, and he's found out. And there's not really any question that he has had sex with caesar's wife. The merest suspicion of it is reason for caesar to divorce pompeia. It may have been the reason he gave. But if they weren't, that would have been grounds for divorce.