No emotions are communicable as emotions are qualia. However you can describe an experience or experiences that give you similar emotions, and if the other person feels quallia for those experiences they will assume you have the same.
Is your red the same as mine? We cannot ever say. But does your red happen when you see something I’d also call red? Most likely (unless you’re color blind).
The same is true of emotions. Maybe when you lose a loved one, you feel the feeling I do when I’ve accidentally hurt someone in a way I feel I can’t undo. Both are pain, but we will never know if the pain we feel for any specific experiences are the same because all feelings are incommunicable.
Now emotions typically have physical effects too and it is likely that people with similar bodies have some sort of qualia you can reference using the experiences that are associated with them “I feel cold” “I feel weak” “my body feels heavy” etc. Or maybe someone already can predict that they’d feel a specific qualia if they went through what you describe, but that’s never guaranteed.
Unfortunately you don’t have the option of verbal communication with a cat, but you do have physical effects. Furthermore, emotions arise from experiences yes? Remember how you can assume someone has a qualia for cold because they’re human and you’re human so if you experience a qualia corresponding to cold then likely so do they?
Well ennui is listlessness caused by lack of stimuli yes? We most likely feel it because we’re “predators” and have the desire for stimuli and engagement. The same can be said of cats. Ergo, it is entirely possible they could feel an emotion corresponding to it just like us. I would be more surprised if most animals did not feel boredom.
The myths surrounding Prometheus are my favorite
The least favorite is Medusa because Athena literally punishes the victim of a rapist.
Technically I think the version of the story with rape was only described in Roman myths. However, even in the Greek ones she’s somehow the only mortal gorgon and is pregnant with Poseidon. So It seems very possible the origins of that Roman story were in Greek myths we don’t have written records of.
She was portrayed sympathetically in some of the Greek stories, which aids the idea that the version in which she is a victim predates the Roman writings. In a few of the Greek myths she is still portrayed as a maiden rather than inhuman monster, oh yeah and in those versions Perseus beheads while she’s sleeping, cause I guess killing sleeping women makes you a hero?