I know the question was not for me but if helps, in reddit there is now a discussion about it, just search something like "Amayo no Tsuki 44".
But basically they are saying :
Mahiro (big chance) is not a bad person, it was Saki fear at the moment; even Mahiro says sorry and want/wanted to be friends with her. It follows the theme of the manga, Mahiro superficially can be seen like intimidating; but she is more like a really clingy and cheerful person with "maybe" not so much touch with jokes when approaching people she doesn't know. Something like that~
I hope the same, imo with how much Saki likes Kanon is not possible even if Mahiro at some point shows interest; and the 45.1 was really sweet so I have faith hahaha