I recently came across a note in one of my mom's drawers.
What did the note say?
It suggested that she'd had an affair.
You really shouldn't snoop through peoples belongings, especially your mothers. You wouldn't want someone to do that to you.
I can't believe that she would want to be with another guy.
You don't know that your mom had an affair, the note could be any number of things. But you did snoop through her drawers, which was a violation of her privacy. The best thing you can do is admit that you found the note, and sit down and talk to her about it so that you can both be honest with one another.