ual addiction not a psychological disorder?

Ok why don't most psychologists recognize ual addiction as a real disorder??? I told my shrink that I'm very promiscuous and that i have lots of ual encounters on a weekly basis..with the same guy by the way and that i often crave strange ual things and i have indulged in some of them...in joking i told her that "i wonder if i'm a addict?" and she was like no there is no such thing as ual addiction some of us just crave sex more than others and we discussed the reasons why i am the way that i am and all the reasons she gave for my behavior actually make pretty good sence. But why do people go to rehab for sexual addiction if it's not a real disorder???