So this is a question that i had for a while. Well there are many questions actually. Who do bisexuals end up marrying? A man? A woman? Or both? Do they marry a man lets say but still look at women? Or vise versa? Do they realize that throughout their life, maybe they changed their minds and are either purely gay/bi/straight?
They marry the person they fall in love with. It's as simple as that. And they continue to find the same people attractive that they did prior to their marriage. Just like gay and straight people.
Statistically speaking, most bisexuals will end up marrying somebody of the opposite gender. That's just because there are WAY more bi/straight opposite gender people than bi/gay people of the same gender. However, just because they are in a long-term committed relationship, doesn't mean they still don't find some people of the same gender attractive.
You marry someone you're in love with, not who you're expected to marry based on arbitrary ideas like gay/straight marriage