Because it’s a different dimension.
Maybe with the going back to the past she made another timeline a new history, her past doesnt change but only the future of the new timeline does.
But where is she going to stay, in the old or new world she built.
She exist in both worlds cause she didnt die she just vanished. I am not sure if she can make a copy of herself living in both worlds at the same time.
Sometimes we have to let the past go and make new life, and will have new children (who knows she will have same soul of children) new life has better with “him”. She just need her time to say goodbye the past
I thought that she was rewriting history and that with every "new" decision she makes in the past the future will always change multiple times. But like... nothing happens, its like two different worlds. And i don't get it, she went to see what will happen in the future, but that is not the "future" anymore and it doesnt change. Like what is her plan to stay in the new world she is now making or to go to the so called "future" where her first born is??? I doesn't make sense to me. Because in the new world, i dont think she will marry the guy from who her son is, so the kid was supposed to vanish? What is going on??? And is the "new" world fake, because it doesn't affect the future. And how does time pass, she aged in the old world, but Rutiger(idk how you spell it sorry) didn't age, has it been 5 years for him as well?