"Went through a nasty divorce while taking care of my dad who was battling stage 4 cancer. My ex threatened to show up at my parents’ house (where I was living to take care of my dad) and kill himself. He also tried to pay his friend to kill me and cut off my legs and found every way possible to harass me online and say he hoped my dad still had cancer.
My dad passed away two weeks after my protective order was granted."
sleeving_beauty
That is something I will never understand.
There is this thing called infatuation - it is like a drug that makes people almost unable to find minor faults with each other until it is over, it can last for between 1 and 3 years. All the redflags are obvious in hindsight or from neutral observers perspective, also if someone was burned previously they will learn to spot the early signs out of necessity.