They have jogged along for, what... 25 years?? He' says in his promotion of himself, he likes juggling, and he's been juggling women all over the world, and , as anyone could have foreseen , one of those women may have taken matters into her own hand, taken him really seriously.
Suddenly, one night, some catalyst provokes a catastrophe. what was it? some horrid letter from the Au Tax Office? some dreadful long overdue bill from the local council? or maybe, he got a phone call at work that day, one of his 'relationships' was landing in Townsville that tomorrow afternoon, all ready for the civil ceremony with him, she's flying in from Guam, ( a US female Navy nurse at
Hagåtña, who he's been fooling about with, via tiktok for months, among so many others ) ... he panics, he leaves work, and rushes home to find that Frances has had a call from the same woman, wanting to know if 'the staff' at 'his ' place can get the grounds ready for her and Rob's matrimonials... . ....
Well.. , in this scenario, things go south very quickly.. Frances lays out for him what he stands to lose, ( 1/2 the property, 1/2 his superannuation, 1/2 his insurance, 1/2 his stocks and shares etc , it's all too much ) he kills Frances, tries to disguise the murder with the motor mower, making it out to be an unfortunate domestic accident....