My advice to BOTH girls who are in love with their friends, they have both been told that the other girl considers them only a friend. The one that was told by her friend that she knew she was a lesbian long ago, is saying, if I wanted a serious relationship with you, I would have approached you long ago. To the girl with the bisexual friend who has already told you she sees you only as a friend, live with it. And don't confuse being "in love" with someone, with having special feelings. Without the relationships working both ways, real love is almost impossible. Both of you need to grow up and move on, concentrating your efforts on people that are available to you as lovers, not just friends.