Future Mother In Law Hates Me!

I am feeling more and more depressed as i count the remaining days to my wedding. My fiance`s mother hates me! First of all, i`m not chinese (i`m vietnamese) and i`m a lot younger than he is, and because i don`t bend and kneel to his mother`s requests & orders. His mother basically wants a "good traditional chinese" daughter in law who will be her servant. When he brought me home to meet them about a year and half ago, i tried really hard making her like me by doing whatever she wants and it worked. But last november, she really ticked me off by telling me how to do laundry, clean house, do my hair & makeup, and not to speak too much in front of "important" folks unless i`m asked to. I finally put my foot down by saying "no" for the first time to her and she was so furious. From that day on, she made it clear that she will never acknowlege me as her son`s fiance or future wife. I even heard through her other daughters-in-law (they don`t get a long with her too--no surprise there) that she`s even bad mouthing me to my fiance, asking him what the hell he`s doing with me, when he could "obviously" do a lot better. She NOW thinks that i am using him for his money and title (he`s a physician) and i`m nothing but a worthless dumb vietnamse child. I am really upset about that, because he`s the one who pursued me in the first place!!!!! there are times when my fiance and i would argue about his mom and i know he loves me and has already made it clear to her that he WILL marry me with or without her consent. I am very proud of him for standing up to her (he was SOOOO a momma`s boy when i met him), but i still wonder if i could`ve done better to prevent this strain between him and his mother. I would cry sometimes just thinking about it. I`ve never dreamed that my future mother in law could hate me so much. I get so depressed that i would even question my upcoming marriage to my fiance, the man who i truly love. I wonder if i could be happier with someone else, whose mother won`t hate me. I`m sorry for ranting like this when this site is made for "happy" brides, but i just need to vent. My family and friends don`t know how his mother is treating me lately and it`s kinda embarrassing to talk about it.