After Bruce Banner’s death during Civil War II and subsequent resurrection during the events of Avengers: No Surrender, the Devil Hulk suppressed the rest of Banner’s personalities and became the “dominant” Hulk. Now calling themselves the “Immortal Hulk”—due to it manifesting at night even if Banner is killed during the day and apparently unable to be killed itself—the collective personalities reveal during a conversation with Doc Samson that the Immortal Hulk actually embodies Banner’s desire for a protective father figure, and that Banner’s inability to “imagine love without pain” is why he had previously perceived it as being a malevolent, Sadistic entity.
EHT Comics 