Been replaced.

You would pick her over me in a heartbeat.
You make me feel like I'm now second best.
You don't tell me that you love me like you used to.
And I don't think the best gets last.
Something changed. Some how things got rearranged. Some how I got erased.
Now I'm lost just hoping to be found and go back to the way things used to be.
But I've been replaced, I've been swapped and there seems to be no way coming back.