"You're non-monogamous? Then prove it."

This is what I understood

At Sysiphus, a Berlin open-air club, I recognized a striking dark-haired guy in the crowd with a nose ring. Someone I knew I’d at least seen before, but couldn’t place.

So when I saw him moving across the dance floor, I intercepted him.

“We met before right?”

He explained that we met in a park about a year ago. I remembered the occasion but I couldn’t reme…