This kind of happened, and i was the one who fell for her crush. :l The guy was my seat mate for the whole year and we were really kinda close, and as for my friend, she was also my second cousin. I kinda became the bridge for the two of them. I knew it was nothing serious but i know it mattered to her. So i decided to not tell her until they grew apart. but whatever happen though, i'd always choose the friend over the lover.