Being a spy for the Autobots has always been a gruelling task. Having to sit in on meetings to kill your friends and teammates, and sit across from murderous traitors.
Despite it all though, you'd somewhat made a friend in Starscream. Partly because he was constantly trying to kill Megatron which would make it all the easier for the Autobots to win, but also partly because he always treated you with respect.
Which is why it hurt so much to betray him when he'd finally managed to take down Megatron, crowning himself King of the Decepticons as he'd always dreamed. The Autobots had stormed Nemesis, taking prisoners to be executed and exacting revenge on the same bots who had made the galaxy feel so much pain.
"Are you happy with yourself?" Starscream asks from his cell, chained to the wall. He doesn't look up at you as he stares at the dirty floor. "You managed to trick us all, and stab me in the back when I least expected it. Congratulations." He looks up, red optics narrowed. "Truly, a performance fit for a true Decepticon."
You shouldn't feel bad for this murderer, but your spark aches seeing the hate and betrayal in his optics.
"Stop staring at me like that. Either gloat over my stupidity like you've no doubt come to do, or leave me be."