Addictive sex is done in isolation and is devoid of relationship. This doesn’t necessarily mean that it’s done while physically alone. Rather it means that mentally and emotionally the addict is detached, or isolated, from human relationship and contact.
Addictive sex is “mere sex,” sex for its own sake, sex divorced from authentic interaction of persons. This is most clear regarding fantasy, pornography, and masturbation. But even regarding sex involving a partner, the partner isn’t really a “person” but a cipher, an interchangeable part in an impersonal–almost mechanical –process. The most intimately personal of human behaviors becomes utterly impersonal.
Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry. Because of these, the wrath of God is coming. (COLOSSIANS 3:5-6, emphasis added)