Re: How do you explain the grandparents' divorce and remarriage to your children?
My parents are divorced and both remarried (though Mom is a widow now) and FIL was widowed and has been married to SMIL for 15 years. We just told the kids the truth when they asked questions. With TV, books, preschool friends, etc. divorce is not such a strange concept for our little ones as it once might have been. Yes, at some point they will grasp all the ramifications and ask difficult questions, but you just answer in an age appropriate manner and reassure them that Mommy and Daddy are together and intend to stay that way.
Mamma to 6:
dd 10/85 (married in May '08), ds 08/88 (engaged 01/13), dd 06/92, ds 09/94, ds 09/01, and the peanut dd 01/07.
My FIRST grandson arrived Oct 1st!
"If you believe what you like in the gospels, and reject what you don't like, it is not the gospel you believe, but yourself." Saint Augustine