At the airport farewell the two embraced, wordless and choked up.
Tips
history
From 《雨霖铃·寒蝉凄切》 by 柳永 (Liu Yong, Northern Song), a canonical parting ci: '执手相看泪眼,竟无语凝噎.' Pairs with 今宵酒醒何处?杨柳岸,晓风残月 later in the same ci - Liu Yong's signature heartbreak-in-a-harbor mood.
usage
噎 = 'choke on something' (same character as in 因噎废食). Here 凝噎 = 'congealed sob / choked silence.'