"Those walls, those shuttered windows held them in and protected them against the darkness and the long moan of this long night. Ten years hence, little Jean Pierre or Marie might find themselves out here beside the river and wonder, like me, how they had fallen out of the web of safety. What a long way, I thought, I've come---to be destroyed!" (104)
analysis: In this moment, David recognizes how alone he is without Giovanni. Giovanni knew him and saw him and gave him a safe place in his room, so to suddenly be outside that space is jarring. David has also 'fallen out of the web' in a traditional sense, leaving him with nothing.