Gf [25F) turned me [26M] into a cuck. [cuckold perspective]

Me(26M) and my gf (25F) have been together for 3 years and i have been fantasizing her fucking her old sneaky link. This started when i found out that she met up with him 3 months in during our relationship, i saw her messages with her bestfriend telling her that she gave him top and fucked him. I was so heartbroken at first when i confronted her and she felt so bad and apologized and i accepted it, i was so confused at first why it turned me on like it was a mixed feeling of heartbroken and lust. She came over to his apartment twice ( atleast that i know of) and the fact that she made all the effort to drive and come all the way to his apartment just to give him head and satisfy him without return turns me on so much like im hard right now typing this.

I also connected the dots and realized we fucked the day right after she came over to his apt for the second time.. she prolly still had cum in her mouth while we made out, thats so hot. My dream is to watch her give him head and satisfy him in real life while hes being rough to her, she told me he was a rough one. Anyone here down to cuck me on my dm? Also down for any tips etc feel free to comment