What is why is my gf so pretty?

It's impossible to pinpoint a single reason why someone is perceived as "pretty," as beauty is highly subjective and complex. Here are some factors that contribute to the perception of attractiveness in general, which might be relevant in your girlfriend's case:

• Genetics: Her genetic makeup inherited from her parents plays a significant role in her physical features. This includes her facial structure, skin tone, hair texture and color, and body shape.

• Symmetry: Facial and body symmetry are often associated with attractiveness. Bilateral symmetry suggests developmental stability, which humans subconsciously find appealing.

• Health and Vitality: Signs of good health, such as clear skin, shiny hair, and a healthy weight, can contribute to attractiveness. These are often indicators of good genes and a healthy lifestyle.

• Proportions: Certain facial proportions (e.g., the distance between the eyes, the size of the nose and lips) are mathematically associated with attractiveness. The "golden ratio" is a well-known example, although its significance is debated.

• Neoteny: Some consider "cute" or "youthful" features, known as neoteny (e.g., large eyes, small chin), to be attractive. These features evoke feelings of nurturing and care.

• Culture and Societal Norms: Beauty standards vary across cultures and throughout history. What is considered attractive in one culture might not be in another. Cultural influences play a role in shaping individual perceptions of beauty.

• Personal Style and Grooming: How she presents herself – her clothing, hairstyle, makeup (if any), and overall grooming habits – can significantly enhance her appearance. Personal style is a form of self-expression that can boost attractiveness.

• Confidence and Personality: Confidence and a positive personality can make someone incredibly attractive, regardless of their physical features. How she carries herself and how she interacts with others contribute to her overall allure.

• The "Halo Effect": When we like someone's personality or find them intelligent or kind, we may subconsciously perceive them as more physically attractive. This is known as the halo effect.

Ultimately, "pretty" is in the eye of the beholder. You find her pretty because of a combination of these factors, as well as your personal preferences and emotional connection with her.