Addiction (to anything) is often measured incorrectly by people who don't understand what it means to be addicted. People will talk about "how much" and "how often" a drug/behavior is used or relied upon, when instead, the real factor that draws the line between "abuse" and "addiction" are the consequences associated with the use.
It's the consequences that determine addiction. Taking alcohol as an example (though you can substitute AAS or anything else that makes you feel good) -- if you drink several night a week, but are able to make it to work, hold close interpersonal relationships, maintain your health, and pay your bills one time, you likely do not have a problem with alcohol.
However, if you just drink once or twice a month but each time you drink you get in bar fights, fuck your buddy's girlfriend, and get DUI's and still choose to continue to drink despite the consequences you are more than likely an alcoholic.
If you find yourself cycling infrequently, but when you do you take huge doses of gear regardless of the impact on your health, you do it to the extent you're willing to blow off other financial responsibilities in order to obtain more gear, and trash several close relationships because the gear is more important than (whoever) -- you might have a problem.