I've got a friend who claims as a single mum. Her fiance (and father of her child) works in another city and spends 4 nights a week staying there and 3 nights a week with my friend (different nights depending on work but always 3). He contributes a bit financially (but not much by all accounts) and friend relies heavily on her dad to subsidise her. I've often wondered if she should really be claiming as a single person. Would her fiance be classed as living there?
Will probably be flamed for this but even if she shouldn't be claiming I won't be grassing her up because she is a friend and her fiance is a waste of space and won't support her and her child will suffer. I'm just curious as to how it works.