H's mom died when he was 14. Closet cousin dies when he was 31, his closest uncle shortly after. His father in September 2010.

I think his father's death was the final and biggest trigger

TPS
Me: 44 H: 42
M14 T17
S10 D7
10/10 H moves out after death of his father-same month
21/04/12 H is 'DONE'
04/05/12 OW/PA confirmed (rumors from 2010)
July '14 H ends affair
May '15 H moves back home