Toosassy - i could not be more flexible - i am almost horizontal in trying to facilitate my DCs having a relationship with their father and sibling.
We have no contact arrangements because he and she would not stick to anything. I work 7 weekends per year and I can tell you when they are for the next 5 years. EX has those dates on the basis I ask that their contact weekends be some of them and I agree to move as long as they give me enough notice, ie a month. Best was 0730 on the Saturday that he could not have them - they had gone to Wales to see her friend and did not want to take two cars.
In 4 yrs EX managed 5 weekends that co incided!!!
I tell him when I am planning holiday - he has had 2019 since November 2017!!!
Seeing his DCs is done on a " I might be able to see them this weekend " but invariably he would fail to turn up because 5 DCS in a car is not possible and they wanted to do something as a family. i never even tell them he is coming because they have been disappointed so many times.
I have spent monies on activities / days out and then cancelled on the day, night before because he decides he will actually have them.
One summer he was going to take ours, hers and joint to Florida, chose his dates - so i booked myself a week away. 4 days before they were due to go - he said they were not going due to various shite reasons . They went - my DCS were with me, I cancelled my spa week and found cheap and cheerful week in the sun for all of us and booked them into child care for a week of the summer hols. Cost a fortune - think £240 child care week for 2, spa holiday £530, hol in the sun for 3 - £800ish.
I read on this forum about how taking the step kids means it will cost too much and anyway, they get holidays with their mother and excluding them is OK. That the "new" family deserve some time to be their family without the DSCs- because invariably they are a pain in some way.
It is not alright, I hear my DCS tell their DF to have a good holiday and they smile and laugh with their sibling on facetime while they are on holiday, and then i deal with the howls of pain, as a little bit of their self worth and being part of that family dies. ( and I do mean howl - it is a cry of such pain and hurt I hate it)
They fake it because they do not want to hurt their Dad - shame he and the OW do not give a shit about them. Each time it happens they withdraw a little more from their family and people on here want to know why they disrespect the new family, their home etc.
In my eyes it is all or none - my DCS love our holidays but they want a holiday with their Dad, they want to do Dad things. Every Xmas as we would plan the year ahead, they say "maybe we will go on holiday with Dad this year" - the looks and the voices were desolate, they knew the answer.
Roll on and this year EX has left the OW and they have had 5 days away with Dad and sibling. I am unable to describe the excitement in the days before ( was holding my breath and praying ) when he actually turned up with sib and the car of camping gear - I was close to crying. They returned with smiles that were so big and so full of "their Dad" - it was so good to see.
i get people want their own family and not have to deal with the memories that their partner had a sex life and children before hand but do not underestimate the damage you inflict on kids who have no choice and just want their parents to love them and include them.
i get their are difficult EXs who make things difficult but too many people on this forum justify step kid exclusion with no comprehension of the damage is does.