Hi SVA! Wow! 1060 days sober, that incredible, congrats!
So sorry to read what you'er going through.
I often over think things and your situation has me wondering why:
1) Your wife left her phone unattended knowing "he" could call anytime and you might see it
2)She confesses to everything rather quickly
3) She arranges for counseling
Perhaps she wants some attention? I have no clue as to how you two got along before you"found out" Maybe something to think about.