Help with grieving wife.

Hello everyone, I don’t know if this is the correct sub for this but I need help. My wife has just been hit by a triple threat to her emotional stability. Three of her friends from the past recently died. She hadn’t really talked to them in a long time due to a falling out and her belief that the people she was hanging out with were her friends. From my point of view it seems like her issue stems from not being able to say goodbye and bury the hatchet but I am trying to be there for her. Is there anything else I can do or say that can help her. She’s constantly lashing out at me and our daughter.