What was it?

Was it the mask I took off? Was it the real me, the real me who drifted you away?

I made myself a servant of yours, I stayed by your side till you threw me away. What was it? Did I fail to do what you told me to?

Was it that I cared too much? When you scraped your knee, and I cared too much?

Or was it that I didn't care at all? When I thought I cared too much. I left you alone... Was it that?

But it's been years, and all I know is 'what was it?'.
I hope everyday, hoping you would tell me what I had done wrong. In hope I could hear it, one day...