I just caught up with Tattle and didn't see the IG story re: Rich doing Lily's nails thankfully.
I think Lily genuinely thinks having Rich do things that emasculates/degrade him is hilarious (to be clear it def isn't).
Growing up requires mental development along with academic development. As Ali Wong rightly said, "Just because you became a parent doesn't mean you grew up." It's clear Lily stopped maturing after 15 years old. I can see a millennial 15 yo finding that amusing (circa 200-2010) but thankfully many millennials now (not all obvs) and gen z overall are more open minded and would mock/berate Lily for finding something like that amusing.
Lily's "humour", her lack of empathy towards others, her performative activism which she clearly dropped altogether this year, begging for freebies/cheapness when she can clearly afford things, her dislike for "foreign languages" being spoken around her, etc.- mark my words, if she isn't already, Lily is def on her way to being a Tory.