Special shout out to for helping me out with this one! We all know those tired clichés. It’s time to kill them. Take one of them and turn them on their heads or at least these will hopefully keep the errors out of your.
Better idea: write it from the pov of the person who keeps killing off their soulmates. Then they befriend someone and get them to help kill their latest soulmate, only to find out that their newly-found friend is their soulmate all along