Dear Prudence,
Recently I was using my mom’s iPad (with her permission), when she must have accidentally synced all her devices or something, because all of her texts started popping up on the screen. That’s how I found out she was having an affair with a woman. As soon as I realized what I was reading, I shut the iPad down, but I still saw enough, and I don’t know what to do. I feel like my dad should know. But I don’t know if it’s my place for me to tell him, or if I can tell him without outing my mom. I don’t want to out anyone, no matter who they are. But I feel like I’m part of the secret if I keep this from him. I obviously don’t want my parents to get a divorce either. I don’t want to cause it, if it does happen. What’s the best way to approach this that won’t cause any harm?
—Lost Privacy