My Grandmother

So I started this thing to fit into my grandmother's wedding dress. 5 years ago (when I was over 50lbs lighter) my sister got married. My father sewed her dress. We were standing in the reception and my grandma turned to me and said "it's better this way, the dress will fit you much better anyway, we tall women have gotta stick together" (I am 5'9" like her, not 5'4" like my sister). Now I am getting married in 2 years and Grandma may or may not still be around and she said nothing about the dress. I wondered if she realized I was too heavy for it now and cannot fit in it. But it turns out she forgot she hasn't talked to me about it, because she has been talking to everyone else. My wonderful grandma doesn't realize I won't fit in it. She is planning to take Amtrak (she does not fly) from Chicago to New York to see me and talk about the alterations to the dress. So 10lbs down, I need to lose between 20-35 more to fit in this dress. Because my grandma who does not see me has heavy WILL see me in her wedding dress before she dies, even if it is just in my apartment!