Well, at least I can get on board with Shiho's reasoning. No one really wants to see the girl they love pawing after someone else. At least she finally said what she had been holding onto for all this time.
I'm curious about the endgame for these two though. Aki has to let go of her feelings for Yori eventually, and Shiho surely can't be an insufferable asshole for the rest of her life. At the same time, it wouldn't fit Shiho's character to settle for the best friend position again.
I couldn't care less about the actual band competition lol, but I guess it brings us a step closer to resolving this mess and moving on.