Marguerite
The fourth person that Eddie meets in heaven is his wife, Marguerite. She made Eddie think of all of the times that they had together back on earth. Eddie told her about the other 3 people that he met and what happened when he died. I think that Eddie met her because she is his wife and he probably missed her the most and still loved her so much so God brought them back together. Marguerite taught Eddie about love, how it is endless and stronger than anything.