He walked right past me?

So usually I walk home from school. Today a guy came up.too me . He said he always sees me walking by myself so he thought he'd walk with me. I was super flattered. We walked and talked a little and it was really nice. We said our goodbyes and parted ways. I was super happy . The next day , he literally walked passed me without saying a word...wtf. Any help? Maybe he wanted me to say hi to him...
He walked right past me?
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