He looked back once we walked past each other?

This guy I like, I saw him in the hallway and my friend was going to a different direction and I had walked past the guy. My friend noticed the guy staring at me as I was walking away ( I didn’t know about this because my back was facing them as I was walking away) he was looking at me and quickly ran back to me and approached me. We began talking once he approached. What does this mean? Did he just wanted to talk to me or?

He looked back once we walked past each other?
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