It’s Been Said
You can’t unscramble an egg.
If you get fried eggs of a certain sort (like, over-easy, say), you can kind of scramble them on your plate. But if you get scrambled eggs, that’s pretty much what you’re getting.
We can’t undo things that we’ve done, we can only go on from where we are.
I’m sure others have said this line before Bev did, but she’s the one I’ve heard it from most frequently most recently.