He would see her every night, in his dreams.
She would come to him from the darkness of his room, white and frail, and approach his bed slowly.
As she caressed him on his face, she would always smile.
Then she'd bend over him, and they would kiss, and love each other, and whisper and sigh softly.
Then, they would lay side by side, trying to enjoy that rare moment of peace, for they both knew it wouldn't last long.
When the sun came and broke in the soft darkness where they could be together, it would all be over, she'd have to return to the shadows where she belonged, and he would be left alone yet again, night after night.
Every time, he would try to deny the truth to himself, try to hold closer to her and hope this time it would last forever…but it never worked.
She would crouch next to him, and put her arm around his chest, trying to ease his pain, but there was nothing she could do.
He would then feel his heart sink, every night a little deeper, and would turn his face from her, for he could no longer bear the sight of her limpid eyes.
They would lay in stillness, close but every moment a little more distant, till their time was over.
As the first rays of light touched her shoulder, she would caress and kiss him again on his lips, and he would silently pray that she'd stay, that…but he could already feel that she was slipping away, slowly fading into the void.
"Take me away with you" he would mutter at last, pleading.
She would smile again, with her sad little smile, and kiss him on the forehead, and say "Not yet."
With a last glimpse of her smile and eyes, she would be gone.
When Severus woke up in the morning, his pillow would be wet with tears.
Flash-fic originally made to accompany a drawing of mine, published on DeviantArt. Just thought it could be cute to post it here, too. If interested, you can see the drawing here.
PS: I'm sorry for any grammar mistake I could have made…English is not my first language, you see