Loss of Father and Relationship with Brother

My father was going downhill with dementia for the last 8 years, so I have slowly been grieving his loss for years. He passed away 16 days ago after a short illness in which I was blessed to be able to care for him and be with him at the end. My mother died 26 years ago of cancer. I am heartbroken. Also, due to the relationship breakdown with my brother. He was POA for property when we discovered he had abused that power several months ago, for many years. I feel sickened and betrayed. So hard to get through everything alone. My husband is a great support but in spite of everything i love my brother, but don't know if we can have a relationship. He has been lying to my face for 8 years. I kept this from my dad. My feelings are so messed up.