Dean looked at his own arms, finally realizing the reason why she was looking at him so much.
'Damn it... I shouldn't have worn off my jacket. Anyway, I am not willing to tell her about things that happened in my past. If they discover that I involved myself with mercenaries, they will start to ask several questions and soon will find out that I am a slave.'
Dean kept looking at his scars for some time. He could remember the origin of each one of them. He had memorized it at that point. He swore to himself that he would make Rick pay for each one of those scars, for each blow that he took, for each second of suffering that Dean needed to go through. That's why he never forgot about how those scars were made.