She needs distraction while her feelings start to heal. Perhaps start planning a big trip, somewhere amazing to take her mind of it.
Your wife sounds like a gentle, kind person going by the way she tried to just be a listening ear while on FS. Perhaps when she's ready she could do some voluntary work, with elderly people, in a hospital or a in mental health charity?
Meetup.com is a good idea further down the road. It's helped me to meet people to do things with, theatre, meals out and so on without having to make friends necessarily. She can make friends this way but it is much slower and less intense because they are not conditional friendships like in the JWs. Best of luck to you both.