When GP mentioned her really bad OCD to LEO (about the fight) she said she just wanted to clean the van. Then BL says he’s dirty, has sand on his feet and shoes due to camping and that she got mad about it. IOW’s she’s a neatnik and was PO’d he made a mess. I can relate to that. It doesn’t mean she was mentally ill.
She was hot, they were out of water because BL won’t drink out of a plastic bottle and instead of filling their 6 gallon H2O tank in town he was driving to The Arches campsite. He was being a control freak by making her go without water. She was dehydrated.
BTW, she asked LEO first thing if they had any water and drank it down in the patrol car. Then after that she walked to her van with 3 more bottles they gave her for the road.
The reason IMO they stayed at the Cafe from 9-3 is because of free WiFi and AC. Maybe free water, too, but they weren’t stopped until 2+ hours later and a small person can dehydrate quickly in that heat. The temp that day was 95-97. Even in a van with the AC going it’s hot and they were driving into the direct sun.
I think she wanted him to stop at the shaded Visitors Center, get some water and let her clean out the van before driving all the way to the campsite. It was too hot to do all that in the middle of nowhere. But he wouldn’t agree because he was behind the wheel. And that’s how the fight started. IIRC he even mentioned to LEO he still wanted to go camp at the site that night if she went to jail.
JMTCW