Hey Steven -
Have you discxd telling you wife w your thpst? You may want to game-plan a few details beforehand such as to whom do you want to limit this information - so your wife doesn't go out seeking support from family members or others you do not want to know. In my humble opinion, your privacy has been violated enough so take the time to think this through SAFETY FIRST.
Also what kinds of outside support does your wife have for herself i.e. (a) SAFE - non judgemental or Nosy female friends can she turn to (b) a pastor (c) maybe direct her to the thread on this site for family member's of survivors (d) or, maybe have some book recommmendations.
I don't want to make this more difficult than it has to be, but this is emotionally loaded stuff and she (as well as you) will need extra TLC and support.
And when it comes to dealing w your wife always remember, LOVE.
[not sure what I meant to say w that but it sounds good].