Yes, I don’t know exact number but I heard it’s common.

It’s scary because he had sex with someone else all year and his wife didn’t know and possibly was intimate with him right after the other woman, so she was put at huge risk of contracting something from him. Scary stuff. I heard of too many people in bad situations because their spouses sleep around. Scary. Even if he does tests now and is clean, could he be trusted a year from now? Two years? Ten years? I’d never trust again even if just for that reason. Too big of a price to pay