I really recognize the 'when it suits her' part about Arwen being scary smart!
Like his breed in general, Tango was scary smart, and picked up everything quickly. But, there were times when you told him something, and he acted like he didn't have a clue! If you put your foot down, he would do it. Sheesh!
That's great about Apollo being patient with Arwen.
Aurora sounds like a terrific cat. Is she very cat-like? Our small cat, Uhura, is tough, also, as well as sweet, friendly, and affectionate, but she is as cat-like as one gets. If you put her somewhere, I guarantee that she will not stay there. But, if she chooses to go there on her own...!
Good boy, Ari! The piddle pad is your friend, and makes mom happy! He sounds amazing!
Love All Life, Thank You For Posting! :)