The hoe is cheating on you.
That's nice....<br />
You're too young to have a girlfriend anyway!<br />
You'll have about 16 more at least and all of them will treat you like that except one, and she'll be the good one that you let get away because the girl with big boobs flirted with you.
Maybe she was talking to a parent?
Maybe you can talk to her?
Try to talk to her in person.