In a previous question, I asked about how to improve the opening of my short novel. The following is the ending:
"Can I talk about something that makes me feel strange?" he asked while searching for a glass. She nodded and stared at him with her lips slightly open.
"A thousand years from now, this moment will no longer exist," he said, placing the glass on the bar. "Not even as a memory." She leaned her head slightly to one side. "Isn't that long enough?"
"It is for us," he replied. "But for the universe, it's only a fraction of fraction of a second." He poured some of the vodka into the glass, closed it, and returned it back to where he found it.
"And you know what's the strangest thing?" he said while repeating the same procedure with the next bottle. "If I close my eyes, I can see the empty space that is left after that happens. "
"How does it look like?" she asked.
"Just like the world as it is now, he said. "But without this. Without us." He put the second bottle back, and washed him hands, like a surgeon after an operation. He made sure that everything was in its right place, and then placed the glass in front of her. She thanked him, and picked the glass up with care. "How it is called?"
"Explosions in the sky," he answered. She took a sip, and complimented him.
"Why don't you look at it like this," she said, with her eyes fixed on her glass. "Like our minds and bodies, this moment will become stardust, and float through space." He looked at her, then sipped his drink. For some reason, he found it particularly strong this time.
"And exist forever?" he asked.
"Yeah," she said. "Just in a new form." They kept quiet, lost in their thoughts for a while, sipping their drinks. The neon sign was still flickering from time to time.
"I wonder why we are the only people here," he asked after after a moment. She looked around. All the seats were empty, and there was total silence.
"Maybe this moment already turned into stardust a long time ago," she said. "And right now, it is being played somehow. Like a movie." She made a pause, and started drawing imaginary circles on the glass with her index finger.
"But because it's based on my memory," she continued. "There is only you and me."
He looked at her with a smile on his face. "It could be based on mine too." She smiled back, and placed her hand on his. He closed his eyes, and imagined the moment turning into stardust. Every image. Every sound disintegrating, and floating forever in the vast universe.
It is my first attempt of writing a story so I would like to know how to improve this last scene (which consist basically in dialogue).
Sometimes I get confused about whether start an 'action tag' in a new line or right after the double quotes.
I also want to know if there are any writing mistakes.
Thanks in advance.
Disclaimer: I'm not a native English speaker