It might help everyone 'here' if you'd reflect your understanding of the differences between homosexuality and bisexuality. There's no "boarderline" with homosexuality ... you either want/have sexual relations with another man or you don't. If you go both ways with females & men, you're more bisexual than anything. Lots of males, here, use their wives or gf's to draw in black males so they, themselves, have the chance to experience sex with black men. I'm not faulting anyone who does that, just don't live in denial of what you really are or what you really want.
I'm heterosexual, having no desire to have sex with other men. Its just who I am, where I feel comfortable. Interestingly, the few times that my wife has had sex with other females, I got extremely turned on by it. She no lesbian, but if the woman in our "triangle" wants to be involved with her, she might indulge ... just all depends.