"Vision already knows," Tommy sighs. "I may have gone off on him about how my Vision is sort of a deadbeat dad. I just don't know how to approach it with her. Or if my twin or half-sister are going to just blab it out."

Because she was clearly upset about something about Pietro, and he is a lot like Pietro so he doesn't want to upset her. There's a lot of things he doesn't want to do. Including going through the awkwardness of being a disappointing son again.

"Anyway, back to the Young Avengers? We all were powered kids that Vision had listed in his Avengers Fail-Safe, in case the original Avengers were gone or dead or something. Which they were. The group was brought together. All of them had associations with the old Avengers somehow. That was ours."