

Probably the ‘uncanny valley’ effect. It is too real and jarring. I also think making a story out of the concept will be very difficult to make entertaining. People want things they can relate to. Men won’t be able to relate to it and just find it jarring and women will just read having period = being a monster and won’t appreciate the implication…
If you think something good can be made of it you have to write something yourself :/

Our identities and labels are something for ourselves to decide. There are no rules that forces any labels on you. You can be homosexual if you feel that fits you. Other might be bisexual or pansexual. Or you can still consider yourself heterosexual.
Your sexuality is not determined by the identity of others. Your partner changing their identity or sexuality does not change your sexuality. Remember, it is just a label. A label is meant to be descriptive of you and allow easier communication of how you see yourself.
Pick a label that you think makes sense for you. Don’t let others decide it for you based on their identity.
I should mention that likewise your sexuality does not determine your partner’s identity. You can be heterosexual and be attracted to him. The label does not change reality. It is just a general descriptor.
Its just a fucking label, it doesn’t strictly have to ‘make sense’ in every context. Just describe you in general.