Bit dramatic, yes? How were your male instincts not at play before? Seems like you have an inferiority complex like a lot of gay dudes. Curiosity is normal. Obsession is not
It's sad how meek society has made gay men. They act like it's such a revolutionary thing for a dick to like pussy. They go into these tangents about sexual fluidity when it's nothing more than sensation/pleasure, not attraction/love. They have more built up angst about it than bicurious straight men. It's not that serious. I think this is why bisexuality gets a bad rap, the bicurious dramatize it too much.
Men can be gay and fuck pussy too. Not to promote bierasure but sometimes it's just sensation and not full attraction. And sadly some people define their sexuality by their sexual behavior. I've had my share of pussy and still not into women legitimately.