Why would a guy wait on me to walk past or set himself up to be blocking an exit?

Guy at the gym I go to intentionally sometimes waits for me to leave before he leaves. I know he has a crush on me, but I notice sometimes he positions himself to where I’d have to walk past him, even putting his items on the floor so I’d have to step over it. He never says anything and I’m quite shy.

Why would a guy wait on me to walk past or set himself up to be blocking an exit?
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