Addicted to pain

I can't get enough you keep cutting me still I come crawling back heart on my shirt ready for you to stab me again I must be stupid cause you spit in my face and I let it roll down my chin smile on my face cause you don't want to see me cry I smile when you step on my heart I smile when you come home at 2 am I smile when you left... and when you came back when you need help