Hello Muddywaters, and a warm welcome to you.
I'm so sorry that this has happened but now it's an awkward situation because with your daughter in law's anxiety will include depression and has been affecting the marriage between your son and wife.
It's a concern for you, simply because this could also pass onto your son, and when this happens, then it's effect will flow through to you and how you are coping, unfortunately with depression this can happen.
Your DIL should go back to her doctors and have her medication reviewed and before he tells his wife he doesn't love her any more, can I suggest that perhaps he move in with you, and go and see his doctor, who may suggest he start taking some medication and then refer him onto a psychologist, under the 'mental health plan', which entitles him to 10 free sessions per year.
I understand that his wife's anxiety maybe the problem, but she can't help it, but would like to know more about it.
I hope I haven't upset you in any way, and if so I totally apologise.
Geoff.
