He would never jump to start with. lol
There was a real story from Laos. Young lovers there have the habit of committing suicide together when their families just won't approve their marriage or even just dating. Poisons and hanging on branches are common practices.
So, a couple couldn't get married because one of the families just wouldn't let them. They decided to have a last fling at a motel and then they would take a poison together. After the session, the girl took the poison but the guy didn't. He lived.
I don't have the correct answer myself but I go with the odds.
If they both jumped, the man has only 1 odd and that is to die
She has 2 odds. To die or pull the chute.
So therefore, she's the douche bag.