I'm also addicted. I love Diet Coke and drink a lot of it. It have never hindered my weight loss or caused me to crave real sugar. It may happen with some folks but not me. If I don't have any I will drink iced tea.
I try not to drink more than 2 20 ounce bottles a day but when I have a case of cans I can easily drink 5 cans in one day.