Congratulations on your void. Had a cat who was just like it for many years. Lived inside the sofa for a few weeks, behind the oven for a bit, didn’t see the thing for days at a time but food was eaten, etc.
Domino didn’t become “friendly” for a long time and even when years older would do everything on her terms. Eg, no stroking unless you were in a slightly uncomfortable position (she would sit behind you, etc) and with no threat of suddenly grabbing her.
Would turn into a whirling ball of teeth and razor blades when trying to get her to the vets. Once jumped up the chimney to avoid being put in her carrier.
Calmed down eventually and, while never a lap cat, she became extremely sweet. Until my daughter was born and Domino wanted nothing to do with that, thank you very much.