Keeping away from relatives due to their behaviour

Assalaamu alaikum.

I have been deeply hurt by the behavior of my relatives. It has affected me to a great extent. I am now a patient of Acute depression. And on medication. If I have decided to avoid my relatives in future (like in any parties, get together. etc). would that be considered as cutting of the ties with relatives. Also my relatives never accept their mistakes. While some of them say that you should have clarified at that particular moment and not after so much time. I did not clarify because I thought that this will affect the relation. I think that they will never accept their mistakes. Is it ok if I avoid them? Since I have a genuine medical problem and their behavior affects me and my work in a GREAT way. Please reply as soon as possible.