It does make me very sad. I couldn't read it for years. In fact, there are still bits I have to skip, big softie that I am. It does make me laugh that Susan basically goes to hell for discovering lipstick. Hussy.
Una
I thought what tehy were seeing was her on Earth's Heaven-cloud, while the others went to the Narnian afterlife. Not damned, just; Susan accepted 'reality' while the others still kept Narnia in their hearts.