a very slutty love triangle (mmf/threesome/)?

this is a true story I never tell bc it makes me sound like such a slut. years ago I was dating a guy who was no good, borderline abusive in retrospect. I was young and stupid and stayed with him for way too long. He had always wanted to share me in a threesome with another guy, but I was super shy and nervous to do so, although it definitely interested me. Most of his friends were total losers, so whenever my bf would suggest someone who wanted to I would veto immediately. He had one friend (his best and oldest) that was different- a dreamy, quiet guy that my bf knew from high school that wasn’t like his other friends. The three of us hung out a lot, and i could tell this friend, the different one (let’s call him C) was into me. He was sweet and shy, but I sensed a darker side to his personality, which really drew me to him.

I asked my bf if we could have the threesome with C instead of this guy he had recently met who wanted to. He seemed annoyed and would rather one of his loser friends fuck me (I guess he just wasn’t intimidated by them) but eventually agreed to talk to C about it. To my delight, C was super into it.