Ok so I see a string of boxes, all labeled some time earlier than their contents were inserted, each label becomes a quest, the last box holding the pencil to label the next box. She's stalking him, and seeks tokens of her memories of him. "Fluids" makes the story downright creepy.
Haha, yes that's away to see it. I try to never fully settle on what is going in many of these small texts.
Leaves them very open to interpretation! Art!