"And?" That's it - that's Bulma's entire argument for Vegeta about wanting there to be attention on her. Yes, weddings were great, and she's looking forward to even being a bystander just by virtue of being on the train too, but if they could have a second wedding.... Why not? It wasn't like it changed anything from what she intended by having the first wedding. In the end, they'd been married in their own way long before Vegeta was legally an Earthling and they were legally recognized as such.

After all, she knew Vegeta had no intentions whatsoever to share.

It's the comment about her being drunk that sets her over the edge, apparently, cheeks puffing as she well and truly leans in to let Vegeta have it - And then Yondu tells them to take it easy, and she's whirling to point a finger and, very decisively, without an inch of slur or chance in cadence, say :

"Shut up Yondu!"