I've been seeing someone for a couple of months, and it's going really well. He has 2 kids, but they live in another country as his ex left him a few years ago, saying she was going on holiday, and taking the dc with her, then within days she had shacked up with someone else (which had clearly been prearranged). She is now married to that man and they have 3 more dc.
They have joint custody of the dc, but he has to do all the travelling, and it generally works that one month he collects them and they come to him for the week, and the next month he goes to the country they live in, and has them at his ex's parents house for the week. He gets on well with the parents and it works fine.
However the eldest child from the current Dh of the the ex (we'll call him P) really likes my bf, and has started asking if he can come over to stay too. My bf was unsure about this, as he obviously gets limited time with his dc, but the ex's parents said they think that he should have P. P was supposed to be coming over earlier in the summer but for various reasons it didn't work out this time. So bf's ex has said that P should come next time the dc come to stay. She has also stipulated that when my bf is in the country visiting his dc he will have to pick P up from school, as he finishes at a different time to the other dc, and then my bf will have to return to the school to pick up his own dc. She has also made it clear that when the other dc from the new marriage get to an age where they are old enough to travel etc, he is expected to have them to stay too, as it will not be fair on them otherwise.
Obviously it is not any of my business what their arrangements are, but it seems to me that the ex can call whatever shots she wants as she knows that my bf maintaining the amount of contact he has with his dc means staying on the right side of her and her parents, as he literally could not afford to pay for accommodation every time he travels there to visit, as he already has to spend a fortune on flights every time (it's a long journey). I bite my tongue but I do think his ex is royally taking the piss, no?