Why doesn’t my coworker talk to me even though we have a lot in common?

I thought we would be cool by now… it started off pretty cool but now he seems distant

We already talked and we went to the same college, we live in Texas but we are both from Detroit.. my old boss was his first grade teacher and his mom works at my old school. So I thought we would be cool! I told him we have so much in common ! Just in the moment of meeting eachother maybe I shouldn’t have said that

Why doesn’t my coworker talk to me even though we have a lot in common?
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