Calling it now—10 bucks says that whoever finds Shiho in her Den of Mope says a version of, “I knew I’d find you here.”
It would only be slightly more risky to bet against the sun rising in the morning, so no, not taking that bet.
I am however willing to bet on the somewhat less, but still depressingly propable course of events that the manga will never acknowledge that Shiho hurt Aki as well. Or at least, that this will not be discussed or referenced in any way by the characters within the story. Having a friend distance from you all of a sudden and without reason can really hurt, even lead to feelings of inadequacy and self-doubt. And all we got when the two were confroted was Shiho mocking Aki for staying friends with Yori, bitter as if Aki's love was something she was rightfully owed by virtue of being her friend, and Aki was in the wrong for "denying" it. She even tells Aki she is pretending to be friends with Yori, like it is not possible to stay friends if you are not loved back.
And to reference the ongoing discussion in this thread: This has nothing to do with Shiho as a character. All joking aside, she might make a great villain in a very different story, Shakespearian even. But the fact that her negative qualities and actions (like it was said before on here, has she done even one thing in the entire story that was not selfish?) are not recognized by the story as such is grating, especially after such a long time. Himawari got way more blowback for her actions than Shiho ever did, I mean come on.