Would my boyfriend and I survive in a slasher horror movie if you were the slasher?

If I was the slasher. No doubt you'd be dead. I'm a silent killer, so I'd poisin something. Or Id put you in a deep state of disturbia causing you to kill yourself or go crazy and kill the other. I'd make you think that your partner was doing it(: Itd be untraceable(: Or it'd point to one of you(:<