addiction ad·dic·tion (ə-dĭk'shən)
Habitual psychological and physiological dependence on a substance or practice beyond one's voluntary control.
This might describe the way I behave(d) towards this.
Lara has pretty much described it all in her blog post about the Twilight series... it is seriously addictive. I just pretty much missed a whole week of my life, being absorbed in the books... where did time go? It's all over now though, and it feels sort of weird... I think I might need some time to get 'back into it (=life)' again.