Guy Advice

Aubrey • 15, volleyball player
How to tell someone you used to like that you're tired of his shit. I've talked to this guy for a while. I was always the one to text him first. And he stopped responding for a few weeks and I just figured he was busy. Until I overheard him telling someone he has a girlfriend. We were never a thing, but I thought we would end up being together until I found out he got a girlfriend. How should I tell him I'm tired of his games and shitty huge ego self?