He is actually very thankful that Jotaro isn't rubbing the loss in - Jotaro's a better man than him, and Joseph can definitely appreciate that. He takes the revive, and his shoulders relax a bit when Rush wakes back up and immediately claws his way out of Joseph's grasp, even though it's also accompanied by a few quiet curses.

"...Thank you." He huffs quietly. "We'll definitely have to try this again later - I'll let you know when he cleans his ears out."

Rush is, at least, not hiding from him anymore. The Charmander has instead parked himself behind Joseph, making a point of not looking at Jotaro. Apparently he's taking the loss even worse.