Making even small efforts to do nice things for her will probably make a world of difference. Like, little things, record her favorite tv show that you know she'll miss, get her favorite "glade plug in refill scent", a new set of 1000 thread count bed sheets... I don't know specifically, but she surely needs well known, stable comforts of day to day living, along with the reassurance of your love for her.
On the other hand, how is Samantha? Is she truly aware of what is going on? I can imagine that trying to keep face for her might be taxing on your lives as you try to deal with it yourself.