I've already posted about the recent developments regarding DSS (who is 8) and DP is trying to get him some help as soon as possible, but DP and I are trying to decide what is best in the short term.
DSS has created a fantasy in his head that if only his mum and dad were back together, his life would be perfect. He doesn't remember his parents together (they separated over three years ago), and both DP and I realise that this is a perfectly "normal" thing for a child of his age to be experiencing.
However, DSS has recently been diagnosed with stress and anxiety linked to this, and it has been making him physically ill (frequent diarrhoea and pain). He hid this from adults until quite recently; but we think that it has been going on for a few months. He has also become very withdrawn, lacking enthusiasm for anything and appears to be a very unhappy little boy 
The GP is going to refer DSS to a suitable youth counselling/mental health service, but that probably won't get under way until after Christmas.
In the mean time, DP and I have to decide how we deal with the week that DSS will spend with us over the Christmas holidays. During the last few visits, DSS has been very distant with both DP and myself, but more so with me; he has managed to totally avoid speaking to me or even making eye contact for days at a time.
DP and I are wondering whether we should try to create positive experiences for DSS with both of us during the week we celebrate Christmas, or whether it would be better for DP to take the lead and I keep well out of the way when DSS is opening his presents, so that they have space to re-connect without me in the picture.
I really would appreciate peoples views on this. Unfortunately, DSS mum is not on board or approachable regarding this, so we can't discuss it with her, and we are on our own with this one until DSS is seen by a suitable professional 