Why does this guy try to make eye contact with me from afar even though he recently entered a relationship?

Anonymous

He stares for 10 seconds from afar and sometimes secretly watches me and quickly looks away when I catch him every time he sees me on campus but he has a girlfriend for about 2 months that he posted several vacation pics on Instagram with. Why does he do that? We don’t talk so I don’t know him that well

He doesn’t really love her
She is not his girlfriend
Other
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Why does this guy try to make eye contact with me from afar even though he recently entered a relationship?
2 Opinion