Those cctv shots are damning, I think. A person just doesn't start having a smiling convo on the phone when they have:
1: Lost a loved one
2: Just been hijacked at gunpoint themselves
This made me think it HAD to be another hookup- he could not be having a happy conversation with anyone who was a friend or family at that point.
I read his ex fiancee was a wealthy heiress with a family in Britain, and that she was becoming concerned about his impotence. I think that made him readjust his sights- he saw someone who was of lower status and had less powerful and supportive family connections in Britain. Easier for him to keep his wild life if he doesn't have a powerful local family to answer to.
BTW, thanks for posting the tweets despite your technical difficulties. Much appreciated!