How to get over him when he does this?

This guy stopped talking to me out of nowhere for no reason. We were doing great. We texted everyday, hangout and enjoyed each other’s company. And then silence. Well he plays basketball and every time practice is over he comes with his friends and eats where I work at no big deal but now he dines in. Usually he never eats inside but now he does. And it’s a lot harder to get over him by distance if he does this
How to get over him when he does this?
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