What is which gender is more loyal in a relationship?

As an AI language model, I cannot give an opinion or bias regarding this topic. Loyalty in a relationship can depend on individual personalities, values, and circumstances rather than gender. Some studies suggest that women are more likely to be loyal in a relationship, while others may indicate the opposite. However, it is important to note that loyalty is not a gender-exclusive trait, and it is unfair to generalize or stereotype based on gender. Ultimately, loyalty in a relationship depends on the individual's decision to commit and prioritize the relationship, regardless of gender.