Look up "Cycle of Abuse" guys if you wonder why women stay with abusive assholes. Manipulators and controllers have an innate ability to see weakness in a person, usually a women, and begin a vicious cycle consisting of:
1) luring their prey with immaculate and almost impossible charm
2) convince their prey that they are more important than anyone and anything else in their life
3) along with step 2), slowly force their prey to stop contacting friends, family, cowokers... anyone really... for isolation purposes, thus enforcing the prey to rely on the manipulator even more
4) the abuse begins: starts with verbal slander ("you can't do that, you will never achieve this and that, you're nothing without me") to threats to actual physical abuse
5) manipulator reverts to his step 1) self and apologizes for what he/she's done and convices the prey to forgive
6) repeat steps 4) and 5) forever
These manipulators know how to not tip the "abuse scale" to "100%" and stop at "99%". Just a little shy of their prey's breaking point, and then they let the % drop down. If you've played WoW, pretend this is the threat meter and you purposely dropping threat.
This info comes from me having to literally save my current girlfriend from her 5yr marriage with a psycho and diagnosed-narcissistic that has threatened her with a gun more than a couple times, dragged her across rooms, be a complete asshole around others (equivalent to the time War Machine dragged an ex-gf out a car by her hair), and in general threatened her life safety. All in the while, her ex managed to segregate her from ALL her family and friends, communications and locations wise.
Just sharing the knowledge I learned. I'm sure Christy Mack, and in particular millions of other women in the world, are caught in this vicious cycle.