It seems that this person (sounds like a guy) had someone who liked him a lot, but he didn't like them back like that. He probably said cute things, but they didn't hold much weight, to himself at least. But the person who liked him, took his words too seriously. Then when he told that her, he didn't like her, she got mad at him, thinking that he'd led her on, or was playing with her emotions
It seems that this person (sounds like a guy) had someone who liked him a lot, but he didn't like them back like that. He probably said cute things, but they didn't hold much weight, to himself at least. But the person who liked him, took his words too seriously. Then when he told that her, he didn't like her, she got mad at him, thinking that he'd led her on, or was playing with her emotions