Emma had had... minor reservations about attending, mostly paradox-related. But Kitty was Jack's friend, and Emma liked Clint well enough, and Emma was making An Effort at Being Nice to People.

(She was aware she needed practice. It was a work in progress.)

But she was there as Jack's +1, clad in a conservatively-cut LBD, and doing her best to stay out of everyone's stray-thoughts as a sort-of bonus wedding gift to the happy couple.