If You Could Go Back in Time...

If I could go back In time. I would have told you to stop messing with my heart. You didn't even like me yet you played with me like a toy. I don't know whether I should me glad you left or mad. I still haven't gotten over your charming ways,but I do know that I will never let it happen again. I hate that you flirted constantly to make him jealous. He was my best friend. You were a guy who could've never been trusted. Why didn't I see it?