years ago I found a video of my gf at the time cheating on me online

This happened years ago with my first serious gf. it was long distance and I was scrolling online for videos as I was horny and I came across one that looked similar to my gf so I checked it out. There were no faces but I recognised her tattoo and the bracelet I gave her for her bday. the video started off with a bj before she was bent over a desk and the guy roughly plowing into her for a few mins before he came inside her.