Let's put yourself in your wife shoes. What would you do to get the most out of the above situation?

1) Are you going to get bullied into resignation because of HR pressure?
2) Are you going to stick to your existing post until further action is taken by either party?
3) Are you going to seek alternative solutions in other departments instead of constant pressure of sales target?
4) Are you going to lodge a case with NUBE if situation worsens ?

The choices are aplenty. Make the choice wisely and gainfully by referring some sort of game theory into this...and most of all, don't bow to pressure.