Getting the dress hemmed

So the good thing about loosing weight is that it is overall healthier for me and I should have a longer life expectancy etc etc. The not so good thing revolves around this wedding of my friend DNS. We ordered the dress supposedly a size larger. Turned out it has to be taken down
2 sizes and shortened (well that is no surprise about the shortening of the dress since they send them for a 7 foot tall woman)....but two whole dress sizes!!! I don't know if it is good or bad (cause it is costing me $100 either way)... maybe i should eat cake to counteract the cost? no?
that's all...