Silly Love lyrics

I've come this far and I know I can make it
Got a broken heart and you can't break a broken heart
I come knocking at your door
You don't love me anymore
But I just can't give up
Cause I don't know what to do about it
You must be wrong if you think you don't love me
You can smile down and put a happy ending to my song
I come knocking at your door
You don't live there anymore
Is it just a memory
Or am I a little crazy for you