Ianto starts to turn to look at her and stops, looking back out at the waves instead, trying casually to keep his face turned away while he searches his memories. There are no gaps that he can see, but then, would he? The last thing he remembers is... working, he supposes, but the uncertainty is disquieting.

"No," he answers after a long pause, brow creased heavily. "I've been working. I was..." He turns, suddenly, with hopeful clarity. "I was home last night, just for a few hours."