My grown-up daughter recently said something jolting to me that immediately sprang back to mind upon reading your piece: Many people in life want to use you as their foil, and they do it instinctively. It’s as simple as that.
Of course, this lets you know that their relationship with you is primarily about them and their most basic impulses. That’s it, and that’s all. Many folks fall short of the personal development that’s required to get out of their own heads to establish balanced, mature relationships with others. Personal development requires effort and can be uncomfortable.
Working on remembering where I end and where someone else begins helps anchor me; and I work on being happy inside my own space, knowing I’m the only one who lives here.