[The pause is telling of itself, and Ren's curious expression falls slightly upon hearing that. While he may be familiar with that sort of thing from his experiences at home, he and his friends had also managed to succeed in saving their world from being wiped out prior to the Storm. Multiple times. Hearing about it going that way for Allura is more sobering than he lets show on his face, though he definitely can't (and wouldn't want to) entirely hide his downcast expression at hearing that.]

That sounds awful... [Especially for someone who hates being alone as much as he does. The Storm taking both Earth and Cray destroyed him in a way that nothing else in his life has, even with survivors, and he's been pushing back the recoil from it since he arrived, so he imagines it must have been even longer and rougher for her.] But I'm glad someone survived, at least. I think you're doing a good job of representing your people and how strong they must have been.

[It's hard to know what to say in these kinds of situations even when he's not acting innocent. In this case, it's almost a buffer to having to find the words to speak more deeply about it.

He does, at least, raise his arms a little in case she wants another hug.]