What does it mean when a girl invites you at her place after 7 pm?

My friend (he's 16) has been invited by a girl (she's 16-17 too) at her place. They have known each other for a week, and met only once. She said she invites him for a tea and a meal made by her.
What does it mean, when a girl who doesn't know you well invites you at her apartment after 7 pm?
Its quite late tho.


What does it mean when a girl invites you at her place after 7 pm?
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