BCBG Dress (Left) Frederick’s of Hollywood (Right)

So as I was browsing the web looking at dresses today, I happen to come to Frederick’s of Hollywood website. Like usual I simply skim through their pages since it’s never my taste of style. What surprised me was when I saw they had this dress that I seem to like. When I looked closer at the dress I remember it is the same exact dress I brought a couple months ago from BCBG. 

You see, now I’m not talking about dresses with similar style, color or designs, but this one is exactly the same. At the moment I was pretty upset because I bought my dress for 2 to 3 times more, and now I see that they are only selling it for $49.99. I’ve purchased from Frederick’s before but ended up returning and paying a restocking fee because I did not like the quality. Above I showed the picture of the model wearing the dress in the website of Frederick’s – and the dress I bought several months ago from BCBG, just so you have an idea what I’m talking about.

How do you feel about fashion copycats or replicas? Should I be upset?