Just when I thought Renako has some reasonable reactions to such speedy confession, even recognised Mai's brainwashing, she fell right into Mai's insistent hands.
It's kind of funny that both are very inexperienced about what they are after (Mai wants romance, Renako wants a best friend, neither has one before), yet they are very amandant about attaining that (pushy to the point of being a tiny bit rude, especially on Mai's side, imho). They apparently don't really know where the boundaries lie on the spectrum of human relationships (and I doubt they have yet understood the nuance of the transition from friendship to romance, much less the overlap of being friend and being lover, or that stable lovers are also true good friends of each other), and I suspect they don't know much about what those things entail and how they really feel, aside from superficial ideas, and now they try to show the other the way? Hilarity would ensue.
The upside is that these two appear to be nice people and do care about the other's wellbeing, so this will be a fluffy read on top of the comedy they bring.