How long should you know someone before you no longer consider them a stranger?

ChicoFromThe305
You don't gotta read all this if you don't want too, I just want an answer to the question.

It's a long story so I'll shorten it, some chick I met online wanted to meet, I have psychological issues when it comes to a few things and meeting strangers from online is one of them, doesn't mean i can't do it cause i even told her its too soon that i wanna get to know her first but I prefer meeting people I've met in person, she said I was trippin and putting excuses, which is valid cause after explaining to her my issue on why I didn't want too she didn't leave me alone so I admit I started throwing excuses lol

her persistence was also very suspicious, you'd expect that after someone rejects the invitation politely y'all part ways but thinking of this situation made me wonder how long do you have to know someone before no longer considering them a stranger, I've known her for like a few hours, no longer than a full day and i called her a stranger but she said we weren't, I don't consider knowing her education and name as "no longer strangers", am I wrong here?
How long should you know someone before you no longer consider them a stranger?
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