People deal with grief in different ways, some people are open, some talk to close friends, some block it out, some write about it, some people do totally different things, and they are all ok, so please don't feel bad about talking.
People know when reading threads, particularly those here in RB that it could be painful to read, and that is their choice. Mostlikely, people who think they might be troubled by the threads like this, won't read them, but you know you can always e-mail me if you are worried about opening wounds for others, I'm always more than happy to 'listen'.
Milly can never come back, but he will always be alive in your heart and memories. Also, you will see his characteristics in other buns, and that in itself, with time, will become a pleasure.