She confessed her feelings to Makoto, but he turned her down, stating he didn't like her.
Both used to be in the same school. Takeo was in love with her, but she didn't share his feelings. As she was turned down by Makoto, it's likely that she was badmouthing Takeo.
Both used to be in the same school. Mao was in love with him and even confessed her feelings, but Makoto turned her down.