it's pretty clear now that Rinna is starting to fall in love with Sayo since that kiss
I must be blind since i don't see it, it rather the opposite with this chapter. I mean, didn't we even see Rinna's arrow for Sayo dissapear at the end of last chapter ? That's kinda the opposite for that.
I think Mei will someday confront the two about this.
I think she will confront them about their feelings for her, not for each other. I don't really understand why she would confront them for their feelings for each other. At best, she just want them to get along.