She "rejected" me but now wants attention?

So I asked her on a few dates. She said yes to all of them but we never ended up going due to time. But she told her frineds (we have mutual friends) that she only wants to be friends with me. So I heard that she wasn't interested and decided to move on. Gave her less attention and didn't text her at all for 2-3 months. And now she's back trying to reconnect with me. She said she missed us talking and hanging out and all that/

Why is she trying to get my attention now when she told everyone she wasn't interested in me? And how should I go about this? Thanks.
She "rejected" me but now wants attention?
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