I respect you guys, but it's too bad if people disagree with me. From what the OP has posted, and maybe I'm missing something, these two do not know each other well enough to be married. For parents, no matter what culture or religion, to abuse their power by pressuring a young person to marry someone they barely know is reprehensible. It's wrong, and I am proudly intolerant of it.
Parents (healthy parents) can be an invaluable source of guidance and advice for all areas of life. But they MUST let go, and let you do what you want.
How old is this man? He doesn't say, but I gather he's fairly young. Hell, he describes himself as bisexual. Do his parents know this? Does his future bride know this? What is his plan for dealing with this when it comes up in the future? (And it WILL come up) Even putting aside that he may not know his fiancee very well, how well do people generally know themselves when they're young?
OP, it's your life. Your choice. Don't let anyone, even your parents, tell you who to marry. If they give you grief about it, tell them it's too bad, but you call the shots with your life.
This deal has BAD NEWS written all over it. And that's all I'm going to say.
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But let's hear from the OP:
-- How old are you?
-- Have you lived away from home?
-- You've never had sex with a woman, how about a man?
-- What would your parents do if you said 'no' to this whole thing, and declared that you're going to find who you want? It might be tough, but be as brutally honest as you can.
-- Why are you here on this earth? What is your purpose? If you don't truly know the answer to this, I would say you don't know yourself well enough (yet) to get married.