I Can't

I can't do this anymore
I can't do the back and forth
I can't do the respond then don't respond
I can't do the wait for me then don't wait for me
I can't do any of this anymore
I can't keep rebreaking my heart for you
Yet I do
I do the back and forth
I do the respond then don't respond
I do the wait for me then don't wait for me
I do all of it
And in the process I keep rebreaking my heart for you