DSS has regressed again 
He was fine when he arrived, but since getting home from school yesterday his behaviour has been that of a much younger child and he has stopped interacting with me again 
We know that previously this has been linked to his mums open hostility about DP and me - but recently, she seemed to have got better. But, last week, DP had to explain to her that until he found work, his financial support for the DCs would be lower and any limited support he did offer would be from my earnings.
Coincidence?