"I... I..." He gave up trying to speak for the moment and just seized the Doctor's hand wretchedly. Turned onto his knees, leaning down onto his elbows, and clutched at both their hands with his other hand, staring into the Doctor's eyes, his own wide and terrified, flicking back and forth to try and see both the Doctor's at the same time. "I never thought - I knew, but... I can't... I can't...!"