This is the human equivalent of the positive feedback loop thermal runaway.

To make delighted,
We become uxorious,
And smother our wives.

You want to make your spouse happy. So you smother a little. That does not always makes for more happiness. Smother a bit more…

“The two shall be one,
Wife and husband together,
Ne’er the twain shall part.”
(ed.. I bet getting a parted twain would really hurt)

“So much so that they want to smother us, with a pillow.”

“Chick, dig bad boys, so maybe we ought to become so.”
At least with their permission of course.
“Of course.”