Sometimes standing strong is needed. So, please don't feel guilty in your case, Adelia. I even don't feel guilty in mine. It was a mirror for me and her. That's all. But looking in mirrors and then feeling guilt or shame are not the solution. And that's definitely not the message here. Some people don't get a message if we do it with niceness and positivity. I guess it's all about having the right tone in a specific moment of contact.
And maybe our big lesson is that normally non-confrontational people start to stand up for their space and others look in the mirror and become more humble. Balance...