I have a lot of sympathy for Natasha's partner. My brother caught me just above the eye with the follow-through on an overhead once (low lob that both of us went for initially; I hit the deck at the last second, trying to get out of the way).
Even though the bottom of the follow-through on an overhead is reasonably slow, it still left a lump. I can only imagine the lump Natasha's partner got.
The universe isn't expanding; it's just running away from Chuck Norris.