It's cute that Yuki wants to fight side by side with the guy she likes, but... times have changed and he's OP now. Sit back and watch him debut his powers to everyone who used to look down on him.
And don't snatch her away before this fight is done. The payoff isn't done for me until she learns what they tried to do to him, and she gives them the punishment they deserve (because I don't believe for a moment that Dion is the type to act out his own revenge and punish those who wronged him).