Background: H and I came with our own cats. We moved in together 6 years ago so cats had to tolerate each other. And that's basically all they did: tolerate. Last May H's male cat was diagnosed with a very aggressive form of cancer and we fought the good fight but in the end Bo had to be euthanized.
Since then Justy has been nuts and I mean totally nuts. She has taken on Bo's personality traits (and I read somewhere that IS a form of grieving in animals). She used to be very solitary; only snuggling up at night when I went to bed; hated to be held or cuddled; and pretty much kept herself to herself. Bo was complete opposite - very much a people cat - into everything. While Justy still has not become a "people" cat, she is very much more snuggle-able and just wants to be around us to the point of being everywhere and meowing like mad when we don't pay attention. And she's also very restless; moving around all night from room to room (exactly as Bo used to do).
She's healthy according to vet, she's 13 years old (almost 14). My thought is that she's lonely for another cat. H doesn't buy it. He's still grieving for Bo (he and his son got him when he was 4 weeks old and had to be bottle fed), so he doesn't want another cat. He says that I can get another cat but that's not right either. I would want it to be something we decide together.
In the meantime, any ideas for this cat? I play with her, I cuddle as much as she lets me. She eats well, uses the litter box. I am not totally a cat person so some of their behaviors puzzle me.