SPOILERS ahead for Avengers: Endgame. Oof. Avengers: Endgame almost got even darker and deeper into the mythology of what happens when you snap out 50% of all life. The Decimation hit all of the Avengers hard, and they each handled it differently. Black Widow didn't run away or start a family. She got to work. We saw her running point for the surviving Avengers at the compound. She also kept up training. She was quick to speak up and say they needed to try whatever they could to reverse Thanos' Snap, for the people who weren't there with them. She said she never had a family until she was part of the Avengers.