Asia,
It is extremely rare that sorority sisters would just sit around and openly dicuss sorority secrets. These gentleman wouldn't question her unless she said something that would make a red flag go up. Believe me, it's only a matter of time.
I don't see why people do this. It takes sooooo much more effort to try to keep this lie going than it would if she had gone about it the right way.
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Sincerity, Loyalty, Unity