I dont know about you but I would never survive a 5 day typhoon without a proper shelter. I want me some warm, comfy shelter after a day of fishing, or hunting. Proper rest is essential.
Edit: forgot to mention protection from wild animals and malaria, dengue. Shelter seems to be unappealing but is the most basic need.
Average girl. You two trapped will become close and she will want sex. Also, another human being for company beats being alone for an entire year. Might as well spend the year talking to someone, sharing stories, hitting it, and having someone to do things with.