@BraveHeartedHero it feels the author has completely lost track of the story or any cohesion, or he was "forced" to stretch it/milk it and maintain the "status quo" but at the same time he needs to put out pages, thus we get the side stories with characters that have more advancement in one chapter than the main manga so far(the 3 guys in the onsen story, hookup with the girls and have a clear mission/want).
At this point i'm not surprised if he starts falling for dumb tropes and adds another girl to the "harem", main story has stagnated completely and author probably knows it, but he can't commit him to choose someone(or all of them)