I broke contact with my mum. I had in the beginning different family member ringing to discuss what they could do to fix the problem so that contact would resume. When that failed I have had different members react differently. Some our relationships have become closer, and others have become distant or the relationship has stopped. Thats the case with my brother, who couldn't understand why the relationship broke, he took it upon himself to choose a side (when I swore black and blue there was no reason to choose, but he then started to bully and push until the relationship broke).
I haven't had to do a get together, and probably won't have to, but if we did it would be civil, but hopefully would be able to stay far enough away to avoid contact.