The ancients said that the cultivation of human feelings is an article. One can't live in a vacuum. No matter what he does, he has to deal with all kinds of people, such as relatives, friends, colleagues, acquaintances, and occasional encounters ... There are many people you know directly or indirectly, and these people have formed a huge emotional network in your life, which can be called your "interpersonal network". Personally, I think it's not just a matter of relationship.