Your grief is as valid as anyone else's. I'm so sorry this has happened
A while ago now my T was rushed into hospital and was there for weeks. I didn't think she was going to make it. It was the worst grief I've ever felt. I couldn't talk to anyone apart from a friend online who was a lifesaver and totally understood how deep my grief went. I struggled not being able to share my pain and contact T's family, not to mention I couldn't tell anyone in my own IRL circle. Therapy grief is very real but it's a lonely kind of grief. Reach out to people here because we know how deep the relationship can go and how devastating it is when it ends.