As I was first going over my relationship history with my now-husband, he stopped me and said: "you only have to tell me as much as you want to."

So no, happy marriages don't necessarily have to divulge every detail of past love lives. I haven't kept secrets from him, but I also haven't told him everything, because it's simply not important to us. The essence of our marriage isn't our past. It's found in enjoying the present & building our future.

It appears that your wife did not lie to you. She didn't tell you about her past and you married her anyway. If her past was that important, then you could've waited to marry her, or not married her at all. She's also in the wrong if she specifically did not tell you because she knew you would be upset. But you can't pin it all on her. You made decisions here too.