I Am In An Arranged Marriage

Still not. This is crazy, I am crazy, probably.
So, I'll make it short. They proposed to me an arranged marriage. Damn hell.

I'm against marriage, I mean I don't support it, so, mine it seems an easy answer.
But the person is not a random stranger, she's a friend who wants to become citizen of my country, she spent a lot of time here lives a poor life in her country (I mean, poor like real poverty) but she has the opportunity to live a decent western life here in the West even without economical problems.

But there’s only this step missing, they won’t accept her working visa for a long period etc.
So this is crazy, even the embassy told her she might find a person to marry.
And it seems I could be the person. I’m going to refuse, but I don’t know how to do it without ruing our friendship…
Daaamn.