Flash Fiction: Passing Thoughts

Her: Why is he looking at me like that?
Him: Smile, bitch. Would it really kill you to admit I exist?
Her: If I smile, he’ll think it’s an invitation.
Him: If you smile, I won’t do it. They’ll all be allowed to live.
Her: Maybe he’s just… lonely?
Him: I can take out the knife or not. Your call.
As they passed by each other, she offered a hesitant smile.
Him: That smile is so fake. Does she think I’m stupid? 
A moment later, she’d forgotten all about him.