Tartaglia Psycho-Analysis
Tartaglia/Ajax/Childe has an interesting psychological profile.
Tartaglia is said to have changed when he returned from the Abyss. Unlike what the rest of the world may think he was not born a warrior in this game world. "But he would never speak to anyone about that critical, fateful encounter of his... [in the Abyss]. No one around him knows what really happened within that darkness during those three months and he never speaks of it. Source: Tartaglia Fandom Page.
The Tartaglia Fandom page quotes him admitting he's "kind of a bad guy". The main character Y/N is shocked to find that one minute he is warm and friendly, the next a heartless ruthless killer. He shifts seemingly unpredictably between the two leaving those around him at a loss or on edge. He also values honesty, transparency and promise keeping." He not only keeps his promises, but does so with finesse and surgical precision". Source: Tartaglia Fandom Page.
The Genshin Impact Fandom Storyline site mentions how his coworkers are "wary of him". Because he is capable of scheming, brutality and can still care wholeheartedly for his family. He used to be on good terms with Zhonhli until a deception which he took personally. Promising to forgive him if he would do trial by combat. He has "flipped" on him for a seemingly minor trigger. Source: Fandom Storyline.
A fan on reddit explains that "he has so many dualities and facets to his personality." Source: MicroFluff on reddit.
Another fan hypothesize that he has multiple egos or multiple layers of egoes. "Childe is the ego, maintaining balance between the other two." Source: Mkl_dvd on reddit.
"Compartmentalization is a defense mechanism in which an individual separates various aspects of the self (for example, beliefs, social roles, emotions, cognitions) and can only access one of these aspects at a given time. This separation allows to have conflicting ideas or self-concepts without experiencing tension from the contradiction. [...] These dissociated states appear as distinct from each other, and they may operate independently." Source: ResearchGate.
"Compartmentalization psychology describes a defense mechanism where your mind separates conflicting thoughts, emotions, or experiences into distinct mental 'compartments.[...] This mental separation traces back to Sigmund Freud’s work on ego defense mechanisms. Freud recognized that the mind develops protective strategies to shield itself. People dealing with traumatic disorders often develop compartmentalization as an early survival strategy. Compartmentalization involves awareness and choice. You know you’re setting something aside, and at least initially, you could choose to engage with it. Dissociation is involuntary disconnection.'" Source: ReachLink.
"When traumatic experiences are compartmentalized, they are not erased — they are stored separately from ordinary consciousness. Think of it like rooms in a house. In a non-traumatized mind, the doors between rooms are open, and information flows freely. In a traumatized mind, certain doors are locked (from the other egos). Source: TraumaSpecialist.
Dichomatic Personalities Ying/Yang
"Compartmentalized individuals tend to create broad and simplistic self-aspects that espouse an all-or-nothing mentality and are therefore vulnerable to instability when new information or contexts emerge that activate the negative, unintegrated self-aspects" Source: ResearchGate.
Compartmentalization often operates together with other defenses, such as suppression, isolation of affect, splitting, repression, dissociative defenses, and rationalization, this last one often used once the individual is confronted with the contradictions" Source: ResearchGate.
Tartaglia seems to exhibit what is called "compartmentalization". He has divided the extremes of his ego into two. He did this from a deep rooted trauma subconsciously (without it becoming as severe as DID). He even has different names for himself to point to the different aspects. He exhibits strange reactions when called out for these extremely opposing characteristics of a deeply loving relative and bloodthirsty warrior. To avoid cognitive dissonance he created a walls or rooms between the egos.
One minute he is cute and loving. Another he is sadistic and insane.
Which side do you prefer?