Is she giving me mixed signals on purpose or does she not have feelings for me?

I have hung out with this girl two times now. The first time we hung out she was talking about play fighting with me and beating my butt, and she also brought up the only way she would bite me is if I asked her to. The second time we hung out she was laughing at my silly jokes, and I also caught her running my side with her hand one time. We planned to hang out again sometime this week. Yesterday I sent her a meme but she has not read it yet or opened my message. Is she sending me mixed signals on purpose or is she not actually interested in me?

Is she giving me mixed signals on purpose or does she not have feelings for me?
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