I'm totally cool with he and Pixie already knowing each other, I love the idea of former Poltergeist buddies who've kind of come up through the program together.
Friends and training partners are a go, and for every time his powers frustrate Backlash I'm sure there are just as many times those charged melted attacks have knocked Deadzone on his ass!
Noooo Who he just wants to be friendly, he promises he won't use his power on you! That's just in poor taste, when they're not in training.
I'm so down for squabbling, he's really been so indoctrinated that he's forgotten what the real world and free will is like! He'll try so hard to get her to see this is all really for the best, and miserable failure won't stop him.