In love with an old friend, going to tell him? Need advice please?

I think he did, and still does. No guy waistes his time and sais "Hi" Or waves to a girl if he knows you'll just ignore him. Also, he probably started being rude to you so he couldn't get rejected and wanted to reject you first. So I think what you are thinking of doing is a great idea. You should tell him how you feel, before it's too late. And if he doesn't feel the same then nothing really will change, so no hard feelings? Good luck. (: I hope this helped.