Yeah, whatever. There is no need for a woman to "prove virginity to her man" what we are just suppose to take their word for it? Women are not put here to be a man's property.
Also, a doctor would not have given your friend a not saying what happened, because there is no way he would know. Was he there? No.
And many, many women either do not have a hymen or lose it with their first period, or if very active it just wears away.
Did kc say anything about wanting to be forgiven? No. That didn't even have anything to do with the question.
And even if your friend did lose her hymen because of an accident and she has a "note" to prove it to her future "owner" how in the world would he know that she didn't sleep with several man after this accident?
I am a christian, but I don't think god gave us a hymen to prove anything.