Ari was just arriving at the improvised base that people did a while ago to support the wounded warriors and citizens.
He delayed a bit to bring everyone from the city that he was before. Most people were severely intoxicated with the gas that got spread through that place and were suffering the consequences. He needed to go back and forth several times to carry people himself because he didn't have too many warriors in condition to do so.
'It's not that hard to absorb anymore. Everything just happened, it's a matter of fact now. However, it's just painful to think that our home wasn't untouchable just as we thought that it was. Somehow, I fell kind of... kind of helpless.' long as he didn't inhale it anymore, but that was not the case. It infected the body and kept destroying the person inside out until they got unable even to move.