What are signs I would have noticed in 2 years of a male coworker seeing me just as eye candy and someone he enjoys flirting with at work?

But nothing more? I work in retail so people dont act very professional or white collar so
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Im afraid that i have YET AGAIN for he third or so time taken guys at work too seriously.
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Gotten attached and loved them..

No sex was involved by the way
What are signs I would have noticed in 2 years of a male coworker seeing me just as eye candy and someone he enjoys flirting with at work?
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