I am so glad she called and apologized. It is also understandable to become overwhelmed when trying to plan a big family event like that. It sounds like you have your plans all worked out for your visit with your son.
I don't really get the jealousy thing either...Is this the same daughter who has the husband that bad mouths her mother and she doesn't stick up for her? If so, it seems to me she has some...well, issues...