I know my wife has cheated on me also on a few occasions. I have never found pics or videos, but have found her panties in the laundry basket full of cum, even bought a psa semen test kit that was positive.
My wife know and has my blessing to have an occasional strange cock and all she has to do is tell me.
but says no I am all she wants and needs and has no interest ir desire for anyone else.
she has asked me and accused me many times of fucking around on her and I could never figure out why I would be accused of cheating on her and I never made the connection I realized she was accusing me because she is/was cheating on me so in her mind I also had to be cheating,
My wife will never admit it no matter what evidences a I bet most women are the same