PS said he had thought he had called his brother to let him know he wasn't coming afterall, but he said something like, 'apparently not'. Maybe he was starting to go in and out of dementia a bit back then? It seems GJ may have thought so, from his line of questioning?
I'm wondering if PS just wants to be/sees himself as a helpful kinda guy.. possibly offering to help FGM out because her husband had died only 7 months earlier, but the 'help' was looked upon differently than how it was offered?; maybe offering to stay to 'help' his bro, even if he may have said 'don't worry about it, my neighbour, cousin, nephew, kids, friend, girlfriend is here, but come if you want', type of thing. Then when all this action started unfolding in his quiet little street, he became immersed in it. jmo.