Why do taken girls always look at me?

I am a handsome guy and I always notice that girls that have a boyfriend always like smile and/or stare at me. You can just tell when a girl is attracted to you.

What’s the point, it’s pointless. It’s not a crime to look but if I had a lovely girlfriend I wouldn’t be interested in any other girl
Girls just aren’t that loyal/monogamous thinking
Girls do it to get validation from other guys
Other
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Why do taken girls always look at me?
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