Tom Kaulitz - Assassins.

You and Tom are a couple of mobsters, both are brutal killers, but you are dating, you and he participate in illegal car races, you have already run away from the police together... you are both not afraid of dying, you and he live together.

Tom was thoughtful "Would she give her life for me?" he thought. Some time later, you and he went out to kill, but it ended up making a mistake, some police officers were shooting at you, but you were defending yourself behind something, until Tom speaks

If I die, you have to go to the end.