Curate, connect, and discover
I wish that Natasha and Tony didn’t die as much as the next fan, but think about it. Who started the MCU? Tony. And who was the second Avenger to appear? Nat. In 2012, who saved New York? They all did, yes, but Nat closed the port hole and Tony disposed of the nuke. They saved the world first, it makes sense that they die to save it at the end.