A friendship that shatters after a single disagreement is no real friendship. They may have disagreed, but they'll likely disagree again. That doesn't change their feelings and concern for each other. Even mid 'fight', Wuxian would have defended Huasiang if danger had stuck.

"Have you been to a bar? It's a modern tavern. You can buy all a lot of different kinds of alcohol all in one place. I bet the bars in the up are even better."