Where did we go wrong?

Although I lied, you did as well,
it hurt inside, but you couldn't tell.
I stood before you, offering my love,
but you didn't see, how good to you I was.
Time has passed, and your still greiving,
I felt your pain, but I had to be leaving.
I needed to know, it was a test for me,
it resulted in failure, and absolute misery.
You thought you could save me, by telling a lie,
the only thing you did, was hurt me inside.
You've scarred me forever, like I did to you,
the pain is unbearable, I never knew.