So here's the thing, everyone experiences grief differently. In my own family, I am mom/stepmom of 6 and one heavenly stepdaughter. I have seen my husband and stepchildren process their grief in multiple ways.
I have worked in Oncology and assisted people with anticipatory grief. Grief is more than after death. Grief can be experienced due to different types of losses as we know.
If it helps, I have a certification in grief counseling as well.