Although Bob and Virginia “Ginny” Dunker couldn’t have known they would celebrate their 55th year of marriage at Eagle Crest Assisted Living in Rangely, they are discovering the benefits of sharing this phase of life together.RANGELY I Two recliners stand sentinel in the small living room apartment, a coffee table between them. On and above the table are mementos of two lives with more time together than apart: photos of long-grown children, a shared…