Hello Mr. Arabia!!!!!!!!!!!! In response of your question I say: "No"
Well, before I start to feel something for someone that I only treat for few moments, I'll stop to think two things:
the first one it's about the person of matter, If he really love my friend I don't think that just because he/she start a friendship with other person in this case me, he/she forget her/his feelings for my friend.
And the second one, you really believe that if "your friend" is actually a good friend for you, your gonna do something that could affect your relationship with her?
When you call someone "friend" is because you start to be closer....... I never do something like that, because I could never see my friend's face again.