The real guests are missing. This mutual visits, of show girls to an apartment with other show girls is pointless. Especially when with so many single girls, not even one single guy is around.
I don't think that new residents are the solution. It is much more important that these apartments have some real life in them. As long as the residents hide behind shows and are not willing to really live in the apartments, it will always remain artificial and lifeless. No matter if with new residents or not. Only when the residents start to really get involved in the project things will get exciting again. Then, btw, it would be more interesting if the residents were good looking and interesting.
First of all, there need to be more guys. Best would be almost as much guys as there are girls.