For the baby of the family, all grown up
Justin is my youngest, and I'll admit what every mother of a youngest knows: I babied him. His brothers mowed lawns for allowance; Justin negotiated a stipend. They learned to cook; he learned to compliment my cooking, which somehow paid better. I regret nothing. Because here's what all that babying produced: a man who makes everyone around him feel like the favorite. Ask his friends — half of them are here, and every one of them thinks he likes them best. That's his gift. Then Amanda came along, and I watched my charming baby boy become something new: reliable. He shows up early now. He carries things. He remembers appointments — Amanda, I don't know what you did, but three dentists have asked me your secret. You grew my son up, and you did it without shrinking a single one of his charms.
Why it works: It confesses the spoiling with zero apology, then documents the growing-up with funny, checkable evidence like the dentist appointments.
Customize it: List the real chores he charmed his way out of, and the small adult behaviors that appeared after he met his partner.