@Keansor, I doubt, Japanese authors love to have closure on this kind of stuff, I wouldn't doubt she liking his book and end up going on a sign event and meet him there, tho, if that really happens, I hope she is together with Yuki.
@ifalangaria
Eh? Mayu's mother pretty much explained (once again) it in the last few chapters - he was verbally abusive of her and Mayu, and was a cause of her fear of men.