I'm talking about when one person asks for an opening to their monogamous relationship predominantly for them to seek partners of their own gender.
If their current partner only agrees because they don't think the gender the asking partner wants to seek is a sexual threat to them and sees a chance for them to get in the mix - is that person really okay with an open relationship?
As a single person I was not always in a monogamous relationship even if I was sexually active. There were times when I was seeing and being intimate with two different guys and neither of them or I wanted exclusivity to be a part of that at that time. They too were seeing and being intimate with other women at the time.
Those two people could very well not want a committed relationship to be one where I could continue to sleep with other men but they would be fine if I only saw other women partly because they hoped to also be able to have sex with those women. Wouldn't they be doing the same as they were before exclusivity was agreed upon? It doesn't sound like being at peace with the concept of an open relationship to me. It sounds like using someone as bait.