Promise not to stop when I say when

I am a Foo Fighter fan. There is something about the lyrics to many of their songs.

Everlong touches me at different times and in different ways.

I am scared right now. Perfect season for it, really but this is not the fear play I was hoping for. This is not the emotional masochism I want.

And I wonder
When I sing along with you

If everything could ever be this real forever
If anything could ever be this good again
The only thing I’ll ever ask of you
You’ve got to promise not to stop when I say when
She sang

Breathe out
So I can breathe you in
Hold you in