Breaking the Rules

I really thought I knew But I was sadly mistaken The advantage over me You had easily taken The wool had completely Covered my eyes As I fell for all your excuses bullshit and lies You were so dame convincing Played the part so well All the while pretending And I could never even tell Until the day you faltered And let your true self out I finally got a glimpse Of what you were truly about I couldn't really believe it I didn't want it to be so But now that you're exposed I have no choice but to go I will no longer be made To look like a fool And never forgive myself For breaking my own rule The rule most important That was number one on my chart To never completely give Someone my fragile heart