Why would a married guy try to find ways to fist bump me he does it often with me work related or not he will try fist bumping me?

And the other day he said he liked my shoes when he was passing by me and I had them for the past few months yet he just commented I was like my shoes? He was like yes and kept saying good job I’m so proud of you etc while I was working is he being friendly dude

Why would a married guy try to find ways to fist bump me he does it often with me work related or not he will try fist bumping me?
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