Sex addiction is nothing to do with frequency. It's to do with preoccupation. When I decided I needed help, I seemed to be spending nine-tenths of my life thinking about sex, looking at pornography or having sex. It's this total preoccupation which is the most damaging thing. There is a contrast between addictive sex and healthy sex.
Healthy sex has to do with a relationship which is certainly a friendship, which is based on trust.
Addictive sex is this switch, a switch to a different place. I would say that there was not a single day when this addiction was not part of my life. Addiction starts as a lifesaver and ends up as a killer. The life-saving quality of addiction meant that I avoided suicide because I didn't realise I was depressed . Eventually, though, this complete disconnection from reality makes addiction a killer.