Bromance? How do I tell him I'm bisexual?

[Newburgh4life]

Been there, done that. Old high school friend who we told each other our secrets. First person from my home town I told after college and he was luke-warm at first. In my case I always thought he had 'have a rainbow' in him since every few years some one would question him about his internet history. Whether it was a family member or friend he would always get very, very defensive. He's a macho guy (played football in highschool, picked a fight with a gay student...well beat the hell out of him to be honest) but I had my doubts between the trans and furry porn, inebility to develope a relationship with a girl beyond one night stand, and intense bromances; but I digress.
He was luke warm at first and told me things like "well if you're confused then you better figure yourself out" or "Your problem is you haven't slept with enough girls." But once I told my other friends and they were very supportive he changed his toon. The first time I went to a gay club I left him and my other friends suddenly while bar hopping. Next time I saw him he was mad not that I went to a gay club but I went without telling him as him and my other friend would have went with me.
The night of my first actual gay experience started out the same, and my one ginzo friend (it's ok, I'm italian too) cheared me on since he was 'cougar hunting' and I was 'lion hunting'; my best friend demanded I let him know the details when if I went back out. When we did end up getting together afterwards he wanted to hear all the gory details of giving and getting head with a guy.
Other bromance I-seriously-question-your-sexuality moments included pulling me into the men's restroom at a dive bar, taking turns putting the coke spoon in each other's noses (I know, makes us sound like dirt bags but we do party hard sometimes) and telling me repeatedly I was "his only friend he could talk to" or his "only friend that understood him" with a hand on my shoulder a foot apart.
Eventually I got fed up and asked him point blank, no innuendos, no jokes, what was up with him and why wouldn't he hurry up and let us sleep together. I pointed out the afore said reasons, got macho bullshit answers (I don't need to go after girls, they come after me!) till I went nuclear and asked about the gay porn (we frequent the same websights lol). At that point we were both drunk as hell and he went off on me for abusing his trust, and he was just 'bored' of regular strait porn (how someone could get entertained by gay porn on and off for years and not draw a conclusion about themselves I don't know, total closet case). He's got over it within 24 hours.
If the relationship is a strong one then you will probably continue to be friends even if it's awkward at first, if it gets awkward ignore the awkwardness. Seems like both of you are kind of shy about the sexuality thing, don't plan on coming out to only one person, let him see you are comfortable with yourself as are others before you can expect him to be comfortable with you. Have you asked what he thinks about gay people or repealing DADT? I'm not sure if waiting till both of you are drunk is the best idea, emotions flair easier. Telling my friend, even if we can piss each other off sometimes, made my life much much easier as it led to a higher level of self exceptance, and he's gone from his highschool days of terrorising the class gay kid to supporting gays in the military and gay marriage.