Can this guy that I work with be crushing on me?

Or am I overthinking his friendliness to something more when there really isn’t anything, let me point out that he is in a serious committed relationship and he has pointed it out before, but lately he has been overly friendly and nice to me he will come by sometimes and ask how my day is how I’m doing and we may have small conversation, I try to respect and not cross boundaries knowing he is in a relationship even tho he is quite handsome in my eyes, so this past days if he does come and acknowledge me I just go and have a causal talk with him and don’t give him any flirtation or anything like that what do y'all think?

Can this guy that I work with be crushing on me?
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