Interesting since you mention it's still with you after so many yrs...would it bother you to find that video or would it turn you on? I had a very similar experience as you 10 yrs later in 06 .
This is around the time my wife was fucking an X , came home stinking of semen and wouldn’t let me touch her for weeks . Denied it , and still with me . One day I might just find a vid of that time .