What happens when a girl lives with her best friend?

What happens when a girl lives with her best friend? If this girlfriend is a girl, nothing will happen. Two people have a good relationship and will get together and talk about everything. It's just hard to be a girlfriend. What happens when a girl and her girlfriend live together? What won't happen if this girl is a girl? Two people have a good relationship, so they will get together and talk about everything. It's hard to say if it's a male girlfriend, and there are many uncertain factors.