Sorry to say I don't have a great deal of "advice" I do on the other hand have some experience of the situation ie been there don't that and got the video. I hate to say this but stop yourself from cowering and say no be polite and say no or no more, thanks. As PDTails said you have to learn the skill your wife has! she makes you feel that way because you are too close to see the truth, she may be wonderful but she, have seen you or another cower and now she likes to feel the power so don't give in be strong and YOU will feel better and both you and she will begin to see the recovery maybe she will not ever change her view of you but you will and that is the real one who needs to see the improvements