Blocked by Love in the Zombie Apocalypse

As a zombie outbreak spreads across the world, my boyfriend insists on delaying our evacuation so his drama-queen childhood sweetheart can catch the last rescue chopper. However, this is the last evacuation after the outbreak, and our team's only chance to survive. When she still doesn't show up, I knock my boyfriend out and haul him onto the helicopter. In the end, his childhood sweetheart is devoured by the surging horde, while I seize the opportunity to escape and start a peaceful, quiet life with him in the safe zone. The night before I am to take command and lead a massive counterattack against the undead, my boyfriend laces my drink with a tranquilizer and dumps me into a swarm of zombies. Thousands of zombies tear me apart, and I die in excruciating pain. He stands on the fortress wall, a cold smile on his lips. "Had you not been so selfish, Esmeralda would've survived. Now, you'll experience her suffering and atone with your life!" Given a second chance at life, I wake up on the day my boyfriend refused to evacuate on time. Since he's so determined to stand by his childhood sweetheart through thick and thin, I'll make sure they both become zombie food!