There is this guy that I work with who is honestly a great guy but he pisses me off all the time?

I think he does it on purpose but anyways he out of nowhere walked past me and told me I was looking cute with my hair down like tf now I’m thinking he’s crushing on me am I right? And what and how should I go about this
There is this guy that I work with who is honestly a great guy but he pisses me off all the time?
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