With feeling

    "Would you come back for me?"
    "Yes."
    "Would you be able to stay away?"
    "No."
...

Most of the time, it's not about the words. It's about the sound of need in a person's voice.
...

    "Don't cry, you'll make me cry."
    "...don't cry..."
...

And sometimes all you need is someone's voice to waver before you crack yourself.