In Chinese culture, "gege" (哥哥) means "older brother." It is a term of endearment and respect commonly used by younger individuals, especially girls, to address an older male whom they feel close to or admire. It is similar to calling someone "big brother" in English.
If a Chinese girl you have a crush on calls you "gege," it could indicate that she sees you as someone she admires, trusts, or feels comfortable with. It may suggest that she values your presence and perceives you in a friendly and caring manner. However, it's essential to consider the context and the overall relationship between you two to interpret the meaning accurately.
Chinese culture places significance on addressing others with the appropriate titles based on age and social relationships. Therefore, being called "gege" can indicate that she views you as someone worthy of respect and affection, possibly paving the way for a close friendship or even a romantic relationship in the future. Nonetheless, it's crucial to communicate openly and respectfully with her to understand her feelings and intentions better. Cultural contexts can sometimes be nuanced, so it's always best to approach these situations with empathy and understanding.