It's happened before, but obviously not enough. For why else would it seem so significant that when I gazed at a sleeping Maggie at 4am this morning I thought, "Aw, lovely, lovely baby" instead of "Poor little girl"?
She's home nights. It's hard work. But it's fantastic she's here. And although it's still early days, it seems to have done her - and us - the world of good.
But by God, it's tiring. I tell you, I'm too old for this.