It's the same formula as before. "Oh noes he's too powerful for us to even touch and he wants to destroy the planet for shits and giggles"

And then Bulma walks right up to Beerus and slaps him for... spoiling her birthday celebration and making a nuisance of himself.

And then he super bitchslaps her back. And that's what makes Vegeta get back up to fight.

Um... okay, it was touching, but has Vegeta EVER shown that much concern for Bulma before?

Also, Beerus kicked around Vegeta's dad at some point in the past. You'd think we would have heard about that before.