Regret Theorem
It was my fault, you see.
He asked permission to leave.
It was my turn to "babysit."
And although I generally included our baby brother, never getting embarrassed of him when I was with my girlfriends, I just wanted a night to myself.
I simply said, "go ahead!"
He didn't need to wait for me.
It was my turn to live a little.
And even as I was saying it a little too gruffly, he giggled and smiled because he had the answer he wanted and would have left anyway but under a huff.
That huff would take time.
He'd have left a few minutes later.
It was my choice to not argue.
And he loved a good argument, especially if he could turn it back on you to make it make sense for whatever he wanted in that moment and without regret.
He didn't do regret; how strange that he is mine.