Impossible to Think

You have made it quite impossible to think. I don't understand how you can play me the way you do and not feel bad, or feel anything, at all. You know when I said that my friend told me that you didn't have a girlfriend anymore, and that that's why I was talking to you? Why didn't you tell me you still did? Why did you let me be so happy over something that wasn't even real?
Part of me wants to ask you these questions, but another part of me just wants to forget you altogether. Because I usually don't let myself get played by guys, I'm too guarded with my heart for that, but you played me like your set of drums. You led me to believe that you actually cared- and you know you led me on. There are so many things I want to say, many mean things, many things that wouldn't ever make any sense, but I'm just going to walk away. I'm going to walk away and forget everything, everything, that has happened between you and me since we met. I'm finally free from you.
My heart isn't broken at all, I had just been listening to what my head thought my heart should be feeling. This may not be a fairytale, but I got the "Happily Ever After" and you got the girl you've supposedly always dreamed of.
But here's the thing, when you realize that it was actually me all along, it's gonna be impossible for you to think because I moved on before I even wrote you this last poem.
I may mean nothing to you now, but when you see what I can see, you're gonna miss me, and you're gonna be sorry that you let me go.
It was impossible to think when I thought you cared, but now it's only impossible to think of everything I can do, without thinking of you.