hi, if it helps, I too never spoke to my son about his move to Oz. I was so upset and could not think straight about it. he had no children at the time it is now 8 yrs later.
I thought i would never see him and his wife again. My first visit was awful I could not understand why he would leave a beautiful house good job etc to go over to Perth, I knew really it was because his wifes family is over there . however I now go up to 3mths a year with my hubby sometimes on my own for a couple of wks.and love it , it is hard to save the money to go and no other holidays have been had in 8yrs but life is too short. we are now applying for a parent visa and my younger son is upset. nothing is easy but mum will come around and teach her skype and facetime on apple .