Perhaps a controversial opinion, but I really hate how the terms 'bi-curious' and 'heteroflexible' are seen as inherently biphobic or problematic and have largely been retired from public lexicon.
There has to be room for curiosity and questioning and fluidity without needing people to know for sure who they are. And I understand the concept of labels being applied based on what your intrinsic sexuality is rather than your experience, but a lot of people genuinely don't know what their 'intrinsic' sexuality is without having experiences to help them figure it out.
I think it's also perfectly valid for people to essentially say "sure, in theory I could maybe see myself being with someone of the same gender, but I don't think it's likely (or I am actively making a choice not to pursue that) and so for all intents and purposes I am living a heterosexual life and don't want to lay claim to an experience of marginalisation I simply don't have"
Likewise, a lot of lesbians and gay people have chosen to actively pursue and prioritise their relationships with people of the same gender over some potential, hypothetical future possibility of attraction to men/women and that's also perfectly valid.
I get why bi people insist that sexuality is about attraction, I really do. Compulsory heterosexuality, normative culture and many other factors often mean that people are likely to have had far more experiences of relationships with people of different genders to them. And your sexuality doesn't just disappear because you settle down with someone.
But I also think labels are only helpful insofar as they enable us to understand and explain ourselves, and shouldn't be prescriptive. And it's perfectly reasonable for people to understand or explain their sexuality through their experience and choices.
