"No, Penny, don't be sorry. It's no problem. I'm just surprised, is all. No one's ever come in and cleaned up my flat before." Not even his mum.
"You're not encroaching on my space," he told her, and returned her smile. "You're my guest. I'm afraid I don't usually have many guests, so if I seemed alarmed, well...I probably am." He gave her a rueful look.
He shifted his weight from his right foot to his left, feeling horribly embarrassed about how he'd acted. "I don't want to ban you from my room, you realize. I mean, if you need something in there..." He had no idea what she'd need, but now he was just rambling and unable to stop himself.
"Beer?" he offered, jumping on the change of subject, even though it wasn't really a topic, so to speak. "You haven't finished it all off while you were cleaning, have you?" He gave her a wavering smile and then headed for the kitchen.