The Hilaria thing is pretty, well, hilarious, especially now Alec and Hilaria keep digging when it would be better to just go silent. I really get the vibes that Alec didn't know the full truth and is trying to stick up for his wife publicly - I bet behind closed doors he's had a few meltdowns (he has form for his bad temper).
HB has never seemed irritating to me, and family members and friends like her, so although it's weird behaviour, it's not something you should be hung out to dry and #cancelled over.
Of course, if you meet someone who tells little white lies about inconsequential stuff, you wonder what else they're hiding.
So, it could just be a cute little fictional backstory she's created for herself (and it was something that happened in the golden age of Hollywood all the time - not that she's quite of that calibre). Or she's stark raving nuts and this is the tip of the iceberg.
I actually find Lulu's transatlantic accent more annoying, (she appears on QVC hawking some anti-aging products every now and then), but maybe that's because I'm Glaswegian.