Or the parents are lying about the room being clean.
Or the girl snuck out and she's lying about that.
Mom was in the room within seconds. So the boyfriend brought in an allergen and is lying about it.
Mom was in the room within seconds. So the boyfriend brought in an allergen and is lying about it. [SEP] Or the girl snuck out and she's lying about that. [SEP] Or the parents are lying about the room being clean.