So I finished watching the first season of The Flash on Netflix and recently started watching the second season. And of course, in all the chaos and world-saving that was going on in the first season's finale (and second season premiere), Dr. Stein and Ronnie combine to form Firestorm and fly into the middle of the singularity to save Barry. When the singularity is successfully closed (or whatnot) and all is safe, Dr. Stein falls - by himself, separated from Ronnie somehow. So we assume that Ronnie died, but it seems that his body just... vanished or something. What exactly happened that Dr. Stein survived, but Ronnie didn't? (And there was no body?) Is the presumption that somehow they separated, but Ronnie got sucked through the singularity, while Dr. Stein didn't? (I mean, Firestorm had to have separated back into two different individuals for Dr. Stein to have gotten his own body back, right?)
Edit: In case it wasn't clear, the question isn't about whether or not Ronnie died - Ronnie is definitively dead. However, it was a very... odd... death, and I was wondering if anybody had an explanation for exactly how the singularity killed Ronnie but not Dr. Stein, among other weirdnesses of the death, like Firestorm somehow managing to separate back into two different people before the death (when it didn't seem like there would be an opportunity for that to happen), and then Ronnie's body not being present and accounted for at the end of the ordeal. (As far as I could tell, anyway - at the very least, I don't think they show a body...) Thanks!