She's really not... but Vegeta's not going to argue, at least not after she's found a new target to distract herself with. If she continues to make a scene, or Yondu has enough of this all, then Vegeta will take her away. It will mean he has to tolerate her like this alone... but at least that's better than leaving her to cause trouble here.

He's happy to let her head over to 'take care' of Yondu, Vegeta staying where he is as he crosses his arms over his chest. This is what you get for starting this all, Yondu, better hope she doesn't have another turn of attitude while she's in slapping range.