My wife wanted to rewatch Titanic the other night and I realized that Kate Winslet was directly responsible for Leo's death.
He put her on a life boat and told her to stay there, but when he turned his back she jumped off the life boat and back onto the Titanic.
After the ship sinks, Leo finds a piece of furniture that's big enough for one person to float on, and he lets her climb on it while he stays in the water and freezes to death.
If she'd stayed on that life boat earlier, Leo could've climbed on the furniture and stayed alive, then they could have gotten married and lived happily ever after.
This is what happens when women don't listen.