I like Roman but seriously probability of him or most other bi guys being married to a guy is close to zero.
It's not even that they have a much bigger dating pool among women but most of bi men probably wouldn't date and marry guy unless they are homoromantic. I know anecdotal evidence is not very reliable but I knew A LOT of bi/"not fully str8" guys and not one of them would consider dating a guy... yet many of them were more passionate about MM sex than gay men.
That's why separating sexual and emotional orientation is so helpful and for some weird reason str8 people get it better than gay people.
Like str8 people wouldn't never call a guy who is turned on and enjoy sex with women and men but only date women str8 while a lot of gay people try to pretend their[heteromantic bi] lust for same gender is not really relevant.