Can someone with amnesia only forget one person completely from their life?

Yes, it is possible for someone with amnesia to forget only one person while retaining memories of others. This phenomenon can occur due to specific types of amnesia, such as retrograde amnesia, where memories of certain individuals or events are selectively lost. The brain's complex memory system can sometimes lead to isolated memory loss based on emotional significance or trauma associated with that person. However, the specifics can vary widely depending on the individual's condition and the underlying causes of their amnesia.