I'll give it a shot sis
See some of my boundaries are kinda floppy, I allow them to be pushed at times and sometimes depending on the situation I allow them to bend.

I only have 1 clear boundary that I implemented last year, NO BS. I don't allow people to disrespect me, I don't allow people to walk over me, I don't allow even a hint of toxicity.

No matter how close we are, or what that person's title is in my life, I will and do cut them loose, family included. I will forgive and forget once, if you repeat your "transgression" knowing it was an issue for me before, well then clearly I am not important to you so I cut off contact. I don't hold grudges, I forgive, but I definitely do burn bridges, preventing them from repeating this boundary bridge crossing bs.

Now if someone has crossed a boundary, one I very much need to re-implement, I believe in communication. Stating the obvious isn't always the obvious to the people who need stating. So I calmly talk, or email explaining what my boundary is, maybe even why I let them cross it, and that it is currently erected and I would appreciate it being respected.

I'm rambly hope that made some sense and wasn't toooo longwinded