Well 2 things.
1 : EXP FARMING. He's the best buddy for that, and he can also farm by himself, granted he doesn't die.
2. Negociate. You can alsways threaten the city folks to come back at night time and attract monsters if they don't give you what you need to keep on living (goods, weapon, ammos, food). They saw you as a nuisance and blamed you for all attacks that happened so far, they don't deserve your protection.