Neal has worried about Emma's safety ever since she journeyed to the Underworld to bring Hook back to life. He wasn't jealous of him but concerned for Emma; Hades wasn't some mortal villain but a god who probably couldn't be defeated so easily. Despite all of worries for his former lover he enjoyed his afterlife on Mount Olympus but longed for day that he would reunited with Emma, Henry, Belle, and Rumple. Unfortunately, he would probably never see his father again given his immortality but he still hoped he would; little did he know that day was today.
Also, available to read on Archive of Our Own.
