Answer:
it's a sign
Explanation:
possibly a universal sign that you need to detox from your phone. the dream was a signal to get you to relaize you need time off of it, and your subconcious is responding to that by making you feel sadness when you're on your phone. even more, because your phone screen broke after this, it is definitely a sign you need some time off the internet (possiby social media, or maybe over-extending yourself to friends). take some time off of it and discover new things you like to do off of your phone. :)