4- The pen
The pen hadn't been worth stealing. It was just a plain, boring, red pen, but it was hers. Oliver have found it that same morning in her bag, while she was packing to leave Nanda Parbat. A bitter moment comparing it to the morning he had had 24 hours bedore, when he woke up feeling the weight of a warm body on him. The soft light of the morning reflecting over her blonde hair, his hand caressing her naked back, her blue eyes shining with love and lust.
"Hi" was everything Felicity said, and everything he needed to hear.
But that has been 24 hour before, when everything seemed perfect, when all he could feel was his love for her, when he could almost forget all the pain that had brought them to that moment. Now it was completely different. She was leaving, back to Starling City with Diggle and a very shocked Thea; he was staying to become the Heir to the Demon.
"Love is weakness" is what Ra's told him after declaring that the guests weren't welcomed anymore. "The love for your sister is what made you surrender to me in the first place. Love makes you soft and irrational. To be the next Demon's Head you must not have any weakness."
But while watching Felicity, Thea and Diggle get into the jet he knew how wrong Ra's words were. He would do anything for them, because he loved them. That was his strenght. He grabed the pen, holding it againt his chest and making a silent promise, that he would come back to her.
I just wrote this very quickly, so I don't want to think how many mistakes are in there.