Rinoa. Quistis thought that she was in love with Squall. She even says that she wasn't actually in love with him near the end of the game. She said that it was her subconscious "sister" feelings towards Squall that she had because of growing up with him in the orphanage. They just resurfaced and took a slightly different form. Quistis loved Squall, but Rinoa was in love with Squall.