I don't want to get involved in the snooping vs. not snooping because that is your call. I snooped on my H and didn't find much.
I know DB discourages snooping, but I think you need to know for yourself the real reason that your wife is leaving you. I know for me it helped me understand what happened and act accordingly. Without the true reason would have had me spinning my wheels continuously.
Me-LBH, 48 Spouse-WW, 48 Married for 19 years Son, 12 BD #1 - November 1998 (EA 7 months after wedding) BD #2 - November 2015 (same XBF EA) WW filed D February 2016 WW moved out April 2016