Ok, so why should it annoy anyone? What difference does it make who or what someone else is if they are not your partner? To suggest that it matters attaches a stigma to a sexuality.
I myself am bi. I consider myself that, yes. I have been with several other women and thoroughly enjoyed the experience. I think women are beautiful and desirable.
I am married to a wonderful man and am currently with a Dom. Had I met a domme that I "clicked" with, I might have ended up with her, but I met Ronn first.