you like making me work for it (слэш)

“Before what, Mr. Potter?”
Before Snape had looked at him, drunk and miserable without knowing why, and told him that he could change his future if he wanted. Before he had pulled Snape out of the darkness he’d been determined to drown in. Before the memories. Before he’d looked into Snape’s eyes and watched him die.
Harry didn’t often change his mind, not about people. He’d been accused by Hermione more than once of being stubborn, even prejudiced. And, once upon a time, he’d thought he’d known exactly who Severus Snape was. But that had changed and Harry was no longer that boy anymore, just as Snape could no longer ever be just his hated professor.
“Before,” Harry said again, more finally.
Harry was pretty sure the fact that everyone never thought he’d live past seventeen was at least half the reason becoming an actual adult was so goddamn strange. Severus just wanted to get on with his life now that it was free of controlling old men.
Or, five times Harry flirted with Snape and one time Snape flirted with Harry.