The sadness of things coming to an end

A breakup song that I would wager was not inspired by an actual breakup:

‘Go on now, go! Walk out the door!
Just turn around now, you’re not welcome anymore.
Weren’t you the one who tried to break me with desire,
Did you think I’d crumble? Did you think I’d lay down and die?’

A breakup song that would wager was:

‘The single saddest thing I ever heard you say,
Was on the day I told you I had to go away,
You said ‘Darling baby please, if you really mean to leave,
Can’t I just hold you a little while longer?’

It's not even my breakup, and it twists my heart to hear it.

Among the best things to recommend about a lifelong marriage is that one never needs to go through another breakup, at least until death do you part.

That must be an immensely relieving feeling.