It sounds like a girl (Girl A) falling in love with her best friend (Girl B), but she doesn't return the feelings. Girl B loves Girl A, but isn't IN love with her. She needs Girl A, and romantic feelings will get in the way of their friendship. (but I need a friend, and I choose you) Girl A made a move, and Girl B is willing to move past it for the sake of their friendship (I will forget the kiss and feel if you will too)
It sounds like a girl (Girl A) falling in love with her best friend (Girl B), but she doesn't return the feelings. Girl B loves Girl A, but isn't IN love with her. She needs Girl A, and romantic feelings will get in the way of their friendship. (but I need a friend, and I choose you) Girl A made a move, and Girl B is willing to move past it for the sake of their friendship (I will forget the kiss and feel if you will too)