There is a book called 'Crucial Conversations'. It deals with all sorts of scenarios - but I have heard people on here talk highly of it when they have wanted to prepare for an important conversation with a loved one. It sort of goes through technique etc as well as options.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength