Am I wrong for blocking her?

There is this girl who is just making me mad. One minute it seems like she likes me, and then she pulls away and acts cold. I would flirt, and she would laugh, indicating she doesn't like me and just wants to be friends. Every time I ask her to do something for me, she doesn't do it. It's nothing big but small things. But when she asks for favors, I'm there. I'm so sick of her. She is so annoying. Once I leave her alone, she comes back and acts like she likes me. Obviously, she just wants attention. But this one time, I thought we were going to hit it off, and out of nowhere, she said she started singing a song to her crush. I literally stopped talking to her and blocked her off Twitter. I just can't stand this girl. Was I wrong to block her?

Am I wrong for blocking her?
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