Questions of Trust

Last night I watched a very cheesy moving on Lifetime about a husband poisoning his wife, a sort of modern Gaslight.  I kept telling myself to change the channel but I couldn't.  Why, I kept asking myself, are women drawn to stories in which the villian is not a boogey-man from without, but an imposter-lover/husband/best friend?  Think of The Shining.  "Here's Johnny!"  And of course, this week at Fort Hood, the gunfire came from inside the military, but it sure as hell wasn't 'friendly...