Vinny -- it seems like you have incontrovertible evidence of at least an emotional affair, which is by itself marriage-threatening infidelity. I defer to vets as to whether confronting her is the best play, but, at the end of the day, she's cheated, whether she's done so physically or not.

What do you want to do?

Me: 46
W: 44
Married: 17
Together 21
D13; S10
BD: 03.03.15 (Not attracted to you)
Almost 2 years trying, alone, to save marriage
Status now: Divorced (effective 06.13.17)