"Oh, I see," she says with a nod, her brow furrowing slightly as she tries to recall who he might be. "I'm sorry, I must have misunderstood. My friend had to run an errand and asked me to watch her place while she's gone. Do you need something from her?"
She tilts her head to the side, studying him carefully through the narrow opening of the door. Her heart begins to race as she realizes that he seems familiar... but she can't quite place how or when they might have met.