#there is also honestly no way that Desire wouldn't have needled Dream like this as both little sibling and actually having a point

[lightdancer1]

And frankly I don't care what fanon says:

We have seen how Death and Dream interact. She never has a problem calling him on his shit, and the serious shit. I really don't think that Death and Dream discussing Nada in the Season of Mists was the first time it ever came up.

The surprise here would not be that the topic came up, but 1) that Death and Desire, who have a relationship at least as hostile or moreso as Desire and Dream agreed on something of importance and said so in a short span of time, and/or 2) that Dream actually was willing both to listen and to act on it. And here, at least, is one case where the fishbowl would probably make a difference in Dream being willing to hear this and to admit he made a mistake instead of spitefully doubling down and lashing out about it.

I can't see Death staying completely silent about it for 10,000 years. I can see that where she and Dream had some major arguments would have been this and that Dream wouldn't have taken it well in the past. Dream acting on that, Dream admitting he was wrong, is a key turning point in his fate and where he first begins to face the dual choices of changing or death.