Something good?

Well this might be something good out of something bad.
My mother got a phone call from my dad the other day and he said to tell him straight away if my nana dies.
The thought is he would use it as an accuse to come down to Christchurch.
I haven't seen my dad since I was 13 and I would love to introduce him to my children and my husband and to myself.
I would love to see my dad, I'm just scared of what he would think of me and my children and what I would say to him.
My Nana is still fighting but more and more is going wrong with her.
I don't want to get my hopes up about seeing my dad as I always get heart broken.