Don't be sorry that she's gone. In our timeline, Natasha was, and definitely is, still doing great things. Other timelines don't really factor into it, so I'm not going to stress over it. People come and go in this place; it's the nature of things and
getting upset over it is even the pain of losing someone close can be mercifully short at times.
I say all of that above to head off anyone telling me they're sorry for Natasha leaving, but as I wrote the words I feel they should be for everyone on that list, along with every previous list and every list to come. Take heart, we'll see them again.
JamesI'm glad you got a chance to know her. If you need anything, I'm here.