Did I mess up or am I playing the game?

My crush is a shy guy and can be so sweet some days and aloof the other days. I got a little tired of his mixed signals so I tried to become "less available." I didn't call him as much or spend nearly as much time as we did this summer and last semester. Before, we would text/call each other for no reason. Anyway, I think I might have overdone it because he never calls or texts me as much. Did I mess up? Am I doing the right thing? Or is this just a stupid game that I should stop playing immediately and move on? We're both 21 in college.