Carol was obviously there as one of the brides. She was in a fantastic mood, of course, and spent most of the evening clinging to her new wife. But she socialized plenty with their guests and 100% pulled friends out onto the dance floor - Wanda and Kamala especially.
Marlene was one of Emme's bridesmaids and wore pink. She was helping Lily and Pepper handle anything behind the scenes if need be but was overall just a social butterfly and feeling herself on the dance floor. She's happy for her best mate and stole her away for a dance or two.
Kate was there with Emily as her date. She has a purple suit for every occasion and went lilac for the wedding to fit the spring theme. She was very happy for the brides, imbibed freely, and spent plenty of time dancing with her girlfriend and her sisters (definitely Natasha; Yelena, too, if she came).
Kara was there with Lena as her date in a blue suit. She's very friendly, and would have gotten on stage to sing a bit, too, but mostly she had Lena out on the dance floor totally platonically.
Bobbi was there, dressed in blue. She's still sort of getting to know Carol and Emmeline, btu she's Avengers adjacent and got an invite. She was definitely social and spent time chatting up other guests; she'd dance if asked but was otherwise content to skirt around the tables, snacking and drinking.