Kristy mentions alternate dimension. Dawn, played by Xochitl Gomez, played America Chavez in a Marvel movie where she can travel through alternate dimensions.
There were some nice moments but this is one of the most forgettable episodes of the season for me. Just a standard wedding episode with a period subplot weirdly shoehorned into it.
I didn't find this episode as funny or entertaining as previous ones. It felt too schmaltzy!