I asked the emo kid if he was depressed that his phone died before him.
Emo Kid's Phone
Explanation
Explain Bear
Hey, numbskull! Get this: Emo kids are stereotyped as being super into sadness and death, right? So, the joke is that the phone dying before the kid is like, a funny, twisted version of the emo kid's dream, cause they're supposed to be all about the dark stuff. And you probably just sit around all day.