“Sherlock.” Greg gently pushed him back with a hand on his shoulder.
“Please,” said Sherlock, almost trembling. “I need…”
“You need John,” he said as kindly as he could.
“But he’s married. Not here. On his honeymoon,” Sherlock wrinkled his nose in disgust.
“I’m not even going to try and replace him.” Greg watched his eyes as he fidgeted nervously.
“You couldn’t.” Sherlock didn’t mean to wound, but Greg’s heart still dipped. “Just tonight, please.”
http://archiveofourown.org/works/1206808
The first part of the Bittersweet series called Ghosts by janto321 is not happy at all, as you may guess from the quote. But I promise it get’s better by the end of the series, it ends with hope.
And you should also try Knight, it’s cute, sexy, a little angsty and the only thing that is ‘bad’ is that it’s too short 
(via readingfanficion)
Thank you again for reccing me!