Renata, on the off chance you read this forum, here goes nothing...
The situation at B1 reached a new low when you returned home last night with Tereza giving you the finger through the closed door when you climbed the stairs.
I don't understand your language, so I have to go on body language, gestures and the occasional translation that gets provided here. It seems that Tereza successfully turned the other two against you, even now she's not a tenant anymore, and you avoid the apartment as much as possible because of that. I am glad that you have some friends in the Ilona & Co apartment, so at least I can see you sometimes. Also thank you for visiting B2 last night, it was good to see you interacting with the girls, and to see your lovely smile.
Hang in there girl. Sher and Regina aren't gonna stay for ever, and when they're gone, Tereza will also be gone for good. Just so you know: The vast majority of the CC members is on your side in this.