My parents were world class boundary violators so I’ve had some personal experience with this issue. My mother didn’t know where she stopped and I started. I used to joke that she was the kind who would say “I’m cold; you need to put on a sweater.” My father could start out chatting with someone at a party and make them so mad they would end up threatening him with bodily harm.
I believe it is more difficult to handle boundary violations by people we are closer to. Here are some ways to understand and deal with them.