So my SO's ex's latest demand for a custody change (the change is occurring because she is choosing to move 5 hours away for a job and to be closer to her boyfriend, who she is currently cheating on in front of her kids, even though she received a job offer 45 minutes away...you can probably ignore this info, I'm just ranting now :) ) is she get to take her 7 year old son for the school year and we get the 9 year old daughter for the school year and then they switch for summer and holidays. This is AFTER she agreed (after much debating over details) that we get both kids for the school year and she get them for the summers and holidays. Of course we have not gotten the custody legalized yet, so she wants to change it.
Anyway, I could speculate all day what her motivations on but that does no one any good. What I am curious about is, has anyone here decided to split up two siblings and if so, why do you feel that was best? I am wondering if there is any argument she could come up with to make it seem like splitting the kids is best for them. She seems to think her son would prefer the arrangement (he probably would at this point) and her daughter wouldn't care, but her daughter has expressed to us that she will be very upset if she is separated from her brother like that. They basically would never see each other other than on the occasional weekend when one parent made a trip to see the other kid (outside of the regular holiday schedule). They get along pretty well and only have what seems to be the typical sibling rivalry stuff going on. They do play together often, more than they fight.
To me, there is no way she will get this approved by any judge, no matter how deranged, but I guess stranger things have happened and I want us to be prepared for whatever kind of arguments she could come up with as far as why this would be a good idea. She keeps implying it is best of the kids and my SO wants to keep both kids together "for his own selfish reasons". Personally, I think it would be cruel to split them up and as older children or adults, they will resent us for splitting them up and not letting them know each other. I know I resent my father for not allowing me to form a relationship with my half brother and sister, and I didn't spend the first 7 or 8 years of my life growing up with them!