He doesn't want a relationship?

He always looks at me, stalks my social media, and recently saw on his instagram account him wearing a leather jacket that looks like the one i wore when we saw each other. That one day when i saw him his eyes were always set on me when i turned around so he doesn't look at me anymore because i was shy he looked away too then 3 min later he was looking at me again he didn't want to stop. But despite all that he doesn't want a relationship why? And second, why he always looks at me?
He doesn't want a relationship?
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