Dead Island Side Quests Walkthrough: Bloody Valentine
You pick this quest up in the Silver Bungalows district in Bungalow #6 while doing the My Precious quest.
There is a pickup truck blocking the entrance to the Bungalow. Get in the truck and back it out.
Jessica Nelson is in the room and is crying for help. Her husband is in the bathroom and he had been bitten by one of the zombies and is bleeding to death. He asks that you take his wife Jessica to the lighthouse and get her to James.
Use the truck and follow the radar up the road to reach the light house. Run zombies over for some extra experience.
After you reach the lighthouse, get out of the car and talk to Jessica again. This will complete the quest.