If her and her BF are always shouting at each other, she (or rather the children) may be being financially abused.
If she says it again, your friend can ask her outright, she may be saying that, hoping for a response.
I've gone back to my voluntary job in a Welfare advice centre, we have families in HA houses, now having to top up their rent by up to £25 a week. I don't understand how people, who were the most "vulnerable" or "in need" are now being targeted, or for what purpose.
These are people who live in the cheapest housing available.
It's easy to get into debt, if your HB/CT is calculated wrongly and they demand repayment for a overpayment.
We are seeing more and more people, that are struggling through no fault of their own.
I agree that children can be fed, adequately, it's tough when you have fed your children certain foods then have a drop in income, so everything changes, though.
If you've got an abusive partner, it seems that there is no way out and everything goes pear shaped.