So I bought my wedding dress a few months back..I was 6 months pregnant at the time and saw the dress online and just fell in love with it! We are getting married in October so I ordered the dress in champagne to go with the fall colors...I tried on a size 12 and it was falling off of me, so I asked them to order me a size 8 because I'm typically a size 7 or 8 and was confident I would lose my baby weight quickly, as I did with my first daughter. The sales assoc. argued with me and told me I should order a size 10 "just to be safe" but I told her no, I wanted a size 8. I picked up my dress and put it away and just took it out to try it on this week. Well the lady ordered a size 10, even after I told her not to. The dress is way too big on me (I had my son 4 weeks ago and have lost 35 lbs so far, I am 5 lbs off from my prepregnancy weight and plan on losing 10 more before october, which is why I told her to order the dress in an 8) The dress looks ridiculous, but that is not why I want to cry.
My fiance saw a picture of the dress online (didn't know it was the dress I bought) and told me he hated it...he likes white dresses and A line, nonruffled or ballgown type dresses (didn't knwo this until this week). I didn't tell him that that was MY dress, but I feel crushed! I want to return the dress, but Davids has a no return policy, and it's been more than three months so I can't exchange it..so here is the question...
Do you think if I go in have a cow about them ordering the wrong size dress even after I told them not to that they will refund my money and let me return the dress? The dress is discontinued now, so I dont' think they could just order the right size. I put it on craigslist but I don't think it will sell

I paid 1050 for the dress, and am willing to sell it for reasonably cheaper, but I'm panicked now. IDK what to do! I want him to think I'm beautiful on our wedding day, and if he hates the dress I'm not going to feel good about the day at all

Here is a picture of the dress: