Cousins' wedding next month and I'm already bracing

I haven't seen most of my mom's side in two years. Back then I was 278; this morning I'm 217. That should feel like a victory lap, except my scale has been circling 214–217 for seven weeks and I'm tired of negotiating with the same three pounds. I'm determined, not delusional. I know the aunts will mean well, but I'm already rehearsing a boring answer for 'what's your secret?' because I don't want the whole reception to become a before-and-after slideshow. Part of me wans to just enjoy being smaller and part of me wants to wear a sign that says the last stretch has been a grind. For those who only see extended family once in a blue moon, how do you get through the comments without letting them hijack the day?