i feel like this is the low hanging fruit of stimulation but there is this article
https://nypost.com/2021/09/22/brian-...death-witness/
it seems BL was in a very agitated state in a restaurant arguing with staff, and GP ofc came in and apologized for him haha. who knows maybe they had been fighting more that day and she felt his mood was her fault. anyway, since this was the day of the strange text message about stan it may have been the last day she was alive (the 27th). so BL was clearly pissy that day.