There probably won't be any relationship development until it gets cancelled. If I'm lucky I'll get Banana no Nana ending.
I believe this is a web series, so it has very little chance of being cancelled, outside of the author themselves doing it.
Unfortunately Banana No Nana was serialized in a mag and subject to pop polls and readership #'s, a web series on the other hand goes as long as the author wants it to. Though whether this is good or bad depends on a lot of things.