Have posted this in pareting aswell as I am not sure if this is a problem due just to dsds age or our situation.
Bit of background - Dsd is 10 and stays with us for Fri - Mon every other weekend and about half the holidays. Her mum and dad split when she was about 2, mum had a new partner before dp met me when she was around 3 1/2. Things have been mostly good between us all, for the sake of dsd, although there has been a bit of tension recently (don't want to go into too many details in case anyone recognises this as our relationship treads a delicate path at the best of times!) I think dsd's mum is maybe a little jealous of the relationship dp and I have and the recent arrival of our dd - however I could be completely wrong about this.