Guys, Why does he look at me a lot in classes we have together if he has a girlfriend ( I will catch him looking at me and he will look away )?

His girlfriend removed the story's of him she had up and I don't know why , I hope it's because they broke up

Guys, Why does he look at me a lot in classes we have together if he has a girlfriend ( I will catch him looking at me and he will look away )?
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