Hardest Part

I wish I knew how to feel right now
Wish I knew what to say
But, every once in a while I wonder
If I subconsciously pushed you away
I put my feelings in empty bottles
Is that the wrong thing to say?
Your new love makes my heart feel hollow, hollow, hollow

But, the hardest part is that I feel like I never knew ya
The hardest part is that I still can't forget about ya
Your echo goes dum-da-de-dum-do-do-day
Your echo goes dum-da-de-dum-do-do-day
Your echo goes dum-da-de-dum-do-do-day
Your echo goes dum-da-de-dum-do-do-day

Where was I for your transformation?
No more spark in your eyes
I don't want any information
But, I can't help but wonder why, oh oh
I can't stand it when our song comes on
Though it used to be my favorite one
Don't you know you make my heart feel hollow, hollow, hollow

But, the hardest part is that I feel like I never knew ya
The hardest part is that I still can't forget about ya
Your echo goes dum-da-de-dum-do-do-day
Your echo goes dum-da-de-dum-do-do-day
Your echo goes dum-da-de-dum-do-do-day
Your echo goes dum-da-de-dum-do-do-day

Oh, somehow you left me empty
Oh, you're still there in the dark
To think that I never knew ya
Oh, that is the hardest part
Oh, somehow you left me empty
Oh, you're still there in the dark
No, I can't forget about it
And that is the hardest part, oh

But, the hardest part is that I feel like I never knew ya
The hardest part is that I still can't forget about ya
Your echo goes dum-da-de-dum-do-do-day (you echo on, you echo on)
Your echo goes dum-da-de-dum-do-do-day (you echo on, you echo on)
Your echo goes dum-da-de-dum-do-do-day (you echo on, you echo on)
Your echo goes dum-da-de-dum-do-do-day (you echo on, you echo on)

Dum-da-de-dum-do-do-day
Dum-da-de-dum-do-do-day