But realistically speaking the US would probably willingly pay damages and reparations.
you really do live in an alternative reality. This is the most insane thing you've written in this entire conversation. And even so:
Materially or in some diplomatic quid pro quo manner and all of that is going to happen behind closed doors and we'll know once records get unsealed.
It's just a cover for how reality slowly sets in. You went from believing that the US would never attack Germany to saying that, actually, the US would totally pay reparations for bombing Nordstream. They'd just do it behind closed doors in order to save face.
You'll get nothing, and you'll be happy to pay all the damages yourself, my friend. And once the records are unsealed you'll be in your 60s, swearing up and down that such skullduggery from the Americans are in the past.