Well one they could probably think that's the only copy of the book and two lerajie may also assume that ginger won't tell her majesty anything and will work to change the contents of the novel.
I don't think it would work because didn't izana fall into despair because he discovered lerajie was just like everyone else around him.
Also Lerajie has really got a problem. Why is she so obsessed stealing Ginger's men. Is it really just that they have the same type?
If you think about it they think quite similarly...I mean Ginger didn't even read the whole book the first time but Miss Atlanta is pretty stupid...Izana was interested in you because of your grandaddy's magical necklace that blocked the power he gave him...I mean after he heard her real thoughts she was just like every one else...did she miss the part where he has a mental breakdown? Boy she may not be redeemable...(╯°Д °)╯╧╧

spoiler alert for the next chapter!!!
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so during their conversation that bitch lerajie just told ginger that she's interested in his majesty and she's definitely going to bring it back his attention that was originally to hers omg girl u want to die???? #-.-)