For those that still don't believe she was always this cray-cray, take a look at this old "I was a 14 Year Old Stalker" video" from 2017.
Going 100% live brought it all out. The Nader arc only exacerbated it. But she was always the way she is now.
Ah yes, GUNT 101.

If this ain't in the OP under Chantal the Stalker, it should be.
The dog. The Goddamn Fucking DOG was alerting. His hackles were up and he tried to bite her (her words). Even the DOG knew she was trouble in a bad way.
Shit, the way she kinda laughs between gunting that pizza, like it ain't no thing. The way she talks about her friend (Shannon, I presume?), is no less than disturbing. Any person with dignity and two brain cells to rub together would be nothing short of mortified, but this is the GUNT.
She's told, pretty bluntly, that if she comes around again, they'll try to push for trespassing. Does she get the memo? Not the GUNT. No...she surmises that she prolly can't get charges, but maybe her mom could if they pursued. No, BRAPHOG, you absolutely can be trespassed. Even in Cucknadia, I am sure. Doesn't matter if you were only 14. Hell, that's as good an ideal age as any to try to impress on your BB in a paint can brain that this is STALKING and stalking is predatory, abusive, scary, and disturbing to normal people.
But this is Gunt.
She's not even fazed, though she "says" she cried and was ashamed. She wasn't. Not enough. I wonder sometimes if her mother truly even knew the extent of her daughter's concerning behavior--or the grandmother. I often go with no. And that sounds about normal and right (no shade). Tweens and teens are pretty ruthless with hiding their behavior, so I can't say I'd be surprised if they didn't know.
You gotta really wonder, as irritated as these guys and their father was...what were they saying to the dad and each other? Complaining about the smell and the Brapping and wheeze laughing at everything? You know they had to complain about the smell at least twice--she repeats that she had CHERRY LIPSMACKERS and CEE KAY ONE (omgsucha90'skid!)!
But on a serious note: The TV on in the background... Malan's eyes prolly rolled so far back he could see his own IQ free falling in real time. No WONDER he mandated that Japanese screen soon before kicking this BRAPhog out.