Morning all, Buck's Fizz and croissants all round! Apologies if I miss anyone out, the thread has suddenly moved quickly!
Out, here's a large one for you
Sounds totally shit for you right now. Forgive me if this is a qu you don't want to answer (or have answered) but do you and DP have DC? I just don't understand how logistically he can make plans that require you to be at home on childcare duty, without checking if you have to be in town for work or similar? It seems like his needs are a MUCH higher priority than yours atm, and for me that would be the main problem- this seems like a wider issue than just step parenting.
Anyway, I really hope the counselling helps you come up with a strategy to cope with whatever decision you make- and as said up thread, the yoga does sound like it would be perfect right now, can he take a friend to the festival? 
Coffee how did it go when DP got back last night? It sounds very difficult when DSD is being deliberately manipulative and deceitful- she probably feels very pulled between her parents and confused/hurt by what her Mum saying, but that's no help to you! 
Whyareall hope you're hanging in until the child free weekend- not long! Do you have plans for it?
Yellow I hope you're not missing DD too much. I think DP should give you sympathy- he may be used to big gaps in seeing his DC now, but I bet the first time was really hard!
DH and I also have a childfree weekend, and are away for 3 nights over the bank hol- I'm so excited! Feels like ages since we really had time alone together with no DSD and no family visiting or occasions! 