Is severing negative communication with an "incompatible" person a big no-no in the Buddhist pracice?

A close relative of mine who I shared the living space with has passed away recently from an unrelated injury. The relative was a good person but inherently "bossy", always getting their own way and intruding my personal life and space in ways I was not a strong enough person to continuously tolerate. At a certain point I've "had enough" and decided that severing all communication was the best course of action for us both to avoid painful arguments, so I did that. I did not feel contempt to that person and understood a lot of their antics were due to their very old age and difficult childhood, I was wishing them well, and was hoping they would make a first step and apologize eventually, which they never did. As a longer term solution I was hoping to move out and live alone, confident that would help me regain my bearings, but there were setbacks in my apartment search, so I did not make it in time either. Now that they're gone, I wonder how a person following the Buddhist precepts would have handled this. Showing compassion every once in a while is one thing, having your life and personal space invaded with petty commands, requests and criticism day after day, even when you're trying to meditate, seems like another.