Interesting...2 layers question.
I do not want by choice to have a "true bi" male as a steady partner in exclusive relationship. I am not sharing mine knowingly, agreeingly (lol)..only if its behind my back...
Voluntary back ground check information:..I do separate my horny desires for males and females apart, not mixing time with both together, no way jose..not even in fantasy situations. I guess if trying to explain better, making sense or not..somehow goes like this: I am my regular female with highly masculine str8 male and "masculine" female with a very feminine female.
Now.. if I am highly horny charged "in my masculine" pole inside..I have an imaginary penis too...
(opa!)..I maybe fuck a very feminine vibes men.. but I am going to take those as they were male lesbian and my bitches animals of some sorts.
Now..regarding females I do ignore most as non appetizing, not triggering my sexual desires at all... I am very friendly but picky person in real life about sexual stuff engaging situations.
Interesting thread as hopefuly I will learn more about many different Bi people around.