Object and girlfriend are terms in interpersonal relationships, but they have different meanings and usages.
The object usually refers to the state in which the relationship between two people is developing. The relationship has not been determined and there is no formal address. At this stage, two people may date, chat and get to know each other, but they have not yet decided whether to become boyfriend and girlfriend.
Girlfriend is a term that has been used to refer to the relationship between men and women. At this stage, the two people have been together for a period of time, confirmed each other's feelings and are willing to become each other's lovers.
Therefore, the main difference between an object and a girlfriend is that the object is a stage of undetermined relationship, while the girlfriend is a stage of established relationship. Between them, there is a period of ambiguity, which requires both parties to determine their feelings and relationships through getting along and communicating.
It should be noted that the definition and usage of objects and girlfriends may vary in different cultures and regions. In some places, an object may refer to a partner who has established a relationship but has not yet married, while a girlfriend refers only to a female friend. Therefore, when using these terms, we need to understand and use them according to the specific situation.