Well then she should come back home.My pomponette was rotten spoiled, she had a paté a day and cat treats, she had two cat trees. And much love going from my part, she was happy.It could be that your cat Dalia did not like the food or the apartment or being confined and so she left on her own and does not plan to come back.
You never know.
Cat's only come back if they are happy there.
My kitty is very happy but he needs some freedom too.
He has 2 feral girlfriends and he also likes to chase birds and field mice.
If she is nursing kittens right now she can't come back.
She needs to care for the kittens.
Getting her spayed/neutered would be a good thing too.
All pets that are not going to be bred should be spayed/neutered.
It protects them from unwanted pregnancy.