I have seen true affection, for humanity. From both of them. Maybe they can choose differently.
We both know hell needs to remain, it has its place in the greater scheme. But currently heaven is destroying itself, and that's what's most important.
Don't tell me what's inevitible. A few years ago could you have imagined Uriel working for Lucifer, a demon married to a Winchester, Gabriel actually stepping up for a fight. Don't you ever tell me fate is decided.
I am ready for that outcome, but I will not say it is inevitible.