X has a brain cancer

Hello, I just found out my x-wife has brain cancer. She had brain surgery 3 weeks ago to remove a tumour that they think had been there for a while. It was the size of a dollar bill on her right side and had been there so long it started connecting to the bone and tissue. She had tests last week to see if has spread. No answer yet. She also has to go to Seattle for 5 weeks of chemo therapy.  This adds to the turmoil and remaining emotions that still creep back up to make me sad. But what am I to do other than just accept it.