Do you regret confronting her? I always regret starting a R discussion. I try to remember that regret before starting one. Abd they rarely amount to anything anyway.
I highly doubt your W would just confess to your inquiry. I know you want to believe she is genuine. I know you think she couldn't hide it. But they can and do. I have a friend that cheated on her husband about 10 years ago. She said if a woman wants to cheat she'll find a way. She said you wouldn't believe the lengths abd depths of deceit she'd go to in order to get her fix.
Again, not suggesting she is involved with anyone but I would never rule out three possibility.
M(53), W(54),D(19) M-23, T-25 Bomb Drop - Dec.23, 2017 Ring and Piecing since March 2018