You can list the exact moments that are puzzling so I’ll add some hints or try to rewrite them.
I don’t understand what you meant by girls talking like dudes, better point at the exact dialogues. If you mean Naira speaking harshly sometimes and attacking Lina then it’s intended part of her character.
I struggle to remind when MC called anyone a bitch after they do something cute. The only time I remember is MC calling a bitch Irena after the fight, since she tried to kill him.
Everyday iterations like bringing the flowers are planned for the living together mode. The meeting quest and the first date are mandatory to reveal the girl to player, further dates won’t be mandatory (opposite, you can live only with one girl at your home).
We’re improving on language, I believe the last episodes are good enough. The first ones has issue, we’ll rewrite them over time. We already remade and rewritten the first scene with Naira is episode 8, you can check it (or wait till it’s free) to compare the existing cellar scene and the new one.