It's hardly an addiction, it's something you enjoy doing, why stop doing it?
I spend around 12 hours a day gaming. Whether i'm boosting, practicing for tournaments, playing in one or coaching. I very rarely get a chance to just sit down, chill out and kinds "process my thoughts", even if they're nothing important, my brain doesn't have any downtime during the day to kind of file everything away.
So it happens at night, so my dreams 90% of the time are more of a "Previously, In Sorry I'm F2P's day" recap or just gaming, talking to people and such.
It's a pretty normal thing, if you're enjoying it and you're wanting to play more, set targets, look for things to improve on so at the end of the day it feels like you've accomplished something and it's not just "another day of league"