Follow up: if no, was either side rude to the other specifically or was it just an "I can't talk to you right now/any more" thing?
Either way, I'm sorry it happened and I hope that even if you're okay with life without them, things find a way to recuperate. It can be a tall order, but I don't like to lose faith when it comes to a political division. And I say this as someone who has family I will likely never speak to again over an inheritance dispute.