OP raises an important question regardless of how much you enjoy the game.

A strong sign of addiction is when you take part in something when you feel you "have to", even if you do not like it (work does not count) or like it but do not want it to take priority over other important things in your life such as time with family.

WoW's dailies in WOTLK were built for this purpose. If you didn't log in every day to complete them, you fell behind. FFXIV did the same with books in ARR's relic. Even if you loved the game, you would feel like you had to log in when you were supposed to be out enjoying events, working, being with family, etc.

Regardless of how much you like the game, if you find yourself logging in because you feel you "have to", that means it is time to take a break for your own mental health and for the well being off those around you.