Well no, I suppose she lives with you for reasons that are really none of my business. Maybe she had nowhere else to go, or you needed to split rent. It's not like I was sitting over here with my judgy face on going 'how dare that woman have someone living in their house to cook for them'.
Though I think I should hire one, me. I ruined Spaghetti dinner the other night. If my boyfriend hadn't saved the day I think we might have starved.