Why would he avoid me like this?

Me and my gym crush would work out together, but we never spoke to each other. And for the last two days we’ve kind of been mad at each other or more so probably fed up. I go to the gym very early in the morning
And my crush arrives a couple hours after and today as I walked in he was there probably trying to avoid me and after a couple minutes after he saw me he left quickly
Why would he avoid me like this?
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