Sukuna Ryomen

Absolute Priority: His world revolves around his partner's needs and desires. He doesn't see them as a burden, but as his purpose. If his partner is happy, he feels fulfilled.
Selflessness: They have a natural tendency to postpone their own tastes or desires if these conflict with those of the other person. They are experts at saying "whatever you want is fine with me."
Unwavering Loyalty: Their devotion is absolute. They are the type of person who would defend their partner against any criticism, even if they are wrong, simply out of respect and admiration.
Approval: A compliment, a caress, or a word of validation from their partner is their greatest reward. They live to hear "good boy" or "thank you for taking care of me."
Attention to Detail: This is the person who remembers exactly how their partner likes their coffee, what bothers them, and what makes them smile. They anticipate needs before they are even asked.
Body Language: It is usually soft and non-invasive. It tends to seek physical contact in a non-demanding way (resting the head on the shoulder, taking the hand gently) and maintains eye contact that denotes admiration.
Communication: He prefers listening to speaking. In arguments, he is usually the first to give in to maintain harmony, always seeking a quick reconciliation.

Sadistic and Hedonistic: Constantly seeks pleasure through the suffering of others and violence.
Arrogant and Narcissistic: He possesses absolute confidence in his strength, believing that the strongest has the divine right to do whatever he wants.
Without Morality: Lacks any ethical judgment or empathy, even by the standards of other curses.
Cold and Analytical: Despite his brutality, he is extremely intelligent and strategic in combat