Is it love denied? Or, perhaps, love (longingly and maddeningly) delayed?
I am reminded of a favorite quote:
One kind kiss before we part,
Drop a tear and bid adieu;
Though we sever, my fond heart
Till we meet shall pant for you.
So touching. And sweet. And anthropomorphic.
I suppose, alternatively, they could be thinking this:
You furry little weird freak, get off my property before I come down there and show you what’s up.
Cats. They do make for such beautiful muses.