Is the relationship between Chinese Americans cold?

There is no such thing, but many Chinese in the United States are old overseas Chinese or southerners, as well as people from Taiwan Province Province. Most of them speak Cantonese and Minnan dialect, so it is a little difficult for mainlanders who speak Mandarin to communicate with them.

My new landlord is an old immigrant from Shanghai. When he moved from Maryland, he was very amiable. As long as mainlanders have no bad habits, clean and tidy, and their personal qualities are acceptable, I think it is easy to make friends, but friends are friends after all, so don't always bother others.