Grief comes in many forms. I dont think there is any time frame or any particular way to grieve. I lost my mother last Friday and my father in November.I had not seen my father for many years and yet I thought about him constantly. I decided to do my own special little farewell. I got a bunch of flowers and went down to the beach and put them in the water, and said a little prayer. Strangely this seemed to help. Perhaps you could try that. Take care.