Get It Through Your Head

I changed my heart, and mind, there's nothing you can say, I've filtered through the jokes and insults, it's the enemy's game, You've pounded on the door ignorantly, but you see, I have the keys, And nothing can come into the room, unless I allow it to be, I can hear you from the other side, throwing indirect remarks, Did you think that if you tried to affect me, I would let you in my heart?, When you switch up, which you have, I've got my foot In the door, But the minute you start harrassing me, I shut it again once more, Until you can get it through your head, that's not the way to love, Don't expect me too much from me, because I've tried and it was never enough, Unsatisfied with yourself, this back n forth game you play, This has nothing to do with me, if you don't love me than walk away.