Originally Posted by AnnabelMore
How about heteroflexible and monoflexible?
Using the word heteroflexible cleared a lot of things up for me; I'm a male who isn't generally attracted to other men romantically (well, unless 'bromance' counts) or sexually, yet it's not out of the realm of possibility that I might end up comfortably and happily involved with a male partner. Since your orientation towards polyamory seems analogous to my orientation towards bisexuality/homosexuality, you could use the word "monoflexible" with me and I'd quickly understand where you were coming from.
I apologize for this post being more about me than you, SparklePony, but this is the first time I've run into the word heteroflexible outside the classroom (I'm a college student) and I'm kinda excited by that.