Well, yesterday Ariana further proved both of those points with this pretty adorable video of Pete making fun of her for her obscure Harry Potter knowledge:
"Like me knowing what Professor Quirrell's favorite scarf is... that's just not what Harry Potter was to me."
"Like, I'm sorry I don't know what Dumbledore's cat when he was 4 was..."
Honestly, I've never related to anything more in my life, and Ariana's laugh about the whole thing is everything. Please never change, you two.