Camp, my WW still has secrecy issues and feels that I have no right to snoop. She yells about not trusting her and tries to whip me into line by threatening divorce. It was not until I told her that I would pick up the paperwork at the courthouse that she stopped using that tactic.
She is mad you snooped. Mad she got caught cheating. Mad that the super-happy fun time is over and the thought has never occurred to her that she has left a Cat 5 swath of destruction behind her. Prepare yourself that nothing you do will be right, good, enough. I know brother. I'm right there with you.
Someday, she may start to see the light...or she won't. If she does celebrate one little win.