I bet old Gramps owns holiday lets in Byron, and if he doesn’t, he clearly has the means to buy or lease one.
If Crystal is as smart as she keeps telling us she is, why didn’t she negotiate the twelve month use of a unit nearby to his home? She could have set up a space for her sons and sold it to Gramps as easing the boys into the new relationship. That would have been a child focussed request that also gave her a year of stable housing.
Crystal should also have kept Gramps and his home off IG, but she could not help herself bragging.