How do I avoid getting bro-zoned from My Crush in Highschool?

So I have a crush and I have her number and I texted her asking her to send a photo an answer and she was somewhere outside at that time (around 2 pm) then she said she would send me by evening so I msged her by 6 and she replied by apologizing and said she will send me as soon she reaches home but its 9:25 pm here andI am worried if I ask her to send and she Apologizes and says "Sorry Bro" . Because its really common here people use it in emotions.

I am from India so please suggestions from India will be most relevant because here people use word brother more commonly.
How do I avoid getting bro-zoned from My Crush in Highschool?
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