Black dress I bought from ASOS

This is US size 2. It's brand new and I just tried once. I bought from ASOS. I gained weight these days and the size 2 doesn't fit me anymore. I didn't return this dress because I think this is too pretty and tried to lose weight. Now I am moving to another city, and still didn't lose weight enough to fit into this black dress. I feel it's time to say goodbye to her.