Regarding Hamber's repeated jabs towards her mom's smoking, i'm guessing it's retaliation for Kristine criticizing her eating habits. Kristine has done it in the past after seeing the hilarious portions of white rice her daughter can inhale and it seems like Hamber makes a point to mention it before or after going out to eat. I can definitely see fatass getting pissy at the suggestion to eat at home or pick a healthier option and deflecting it onto her mom instead while publicly shaming her.
"I'm only human! I'm not perfect! It's an addiction and I NEED to eat fewd to survive. Plus, i'm doing the damn thing and on ozempic. Why can you SMOKE but I can't eat??"
Also I'm so obsessed with these huge and hideous sunglasses. I hope she never lets them go. They have a very similar effect on her personality as the press on nails and i'm praying for a crossover.