Seriously, welcome once again to the forum. Lovely to see you posting. No need to answer if you feel uncomfortable, however why has the doctor ordered the two of you be separated? That does seem a bit odd to me. Is this his psychiatrist's wishes? Is he receiving treatment or support for his PTSD? Treatment is exceedingly important as I'm sure you're aware.

I am very sorry for what you are going through, it is painful when they shut us out, isn't it? My son in the military did the same thing. Sometimes we would not hear from him for 2-3 weeks at a time. He also had a young child, who was often crying for his father. One thing you must also remember however, when they shut us out it is because they are in extreme pain themselves. It is their way of coping with their situation. No you needn't go into detail, however personally I would tell your child that her father is ill, and it has nothing to do with her or anything she's done. It is an illness just like any other, and part of the illness is trouble relating to people, even family. We told Liam (our grandson) this about Brian and he did seem to understand somewhat.

If you can find a support group I'm certain it would be beneficial for you. In Canada we have the Military Family Resource Centres, usually located near a base. You perhaps have something similar in the United States. You are most welcome to post here as well. There are a few military families here, and in any event, PTSD and the behaviours that go along with it are similar across the board, whether one has Combat PTSD, Complex PTSD or what have you. You will find many here who can relate regardless of what caused theirs or their loved one's PTSD.