For me, the sweetest thing about this scene isn’t that Becker bought her chocolate, or even that he remembered when it wasn’t even him she asked. It’s the way he just puts it down on the desk and then goes to leave. He doesn’t hover, or draw attention to it, or expect any thanks. He just drops it off and carries on. No big deal.
Plus, the way he twirls it to get it the right way up is just adorable. xD