The only thing I can conclude is that it has always been documented that a good number of Brothers be it Black or Caucasian that came back from Vietnam experienced some serious Post Traumatic Stress Disorder. My own Uncle was one of them or as my Pops told me, he was never the same once he came back. That seems to be what is going on with him. Add to the fact that the lady seems to be looking at him as a replacement for the man that she lost (shrugging shoulders) especially since the soldier and her husband seemed to have a close bond.