Man, how... dramatic. She almost wants to heckle him for it, but something about how serious he is stops her.

Instead, she looks again, trying to imagine it full of life, full of brightness... "If I ever was going to see it, it wasn't going to be like that," she tells him, a little more subdued. No Decepticon would have been allowed on Cybertron without killing their way to the surface, after all. "At least it's peaceful?"

Considering that she opened the conversation by telling him he looked like someone she had shot, being told he'd been fighting Decepticons wasn't even close to the most awkward this conversation could have been. Instead, Slipstream nods and tells him, "Can't blame you for fighting them. Bunch of jerks, aren't they?"