We've been married for 26 years and the last five or so have been pretty lousy. Mostly living a roommate situation. We have 2 kids the youngest still in high school and the other is 21.

Lately, I've been snooping and reading her social media messages. She's been chatting with an old bf that she dated for little while in high school but remained friends with him through the years. She met up with him recently under the guise of seeing a relative of his but let him know beforehand so he would be there. I'm pretty much done with her but I'm wondering if I should come clean on how I gathered this information or not. Not sure how to proceed with this.