Is it possible to shed pounds this way?

The only diet I could stick to has always been atkins, and I've lost weight doing so. The problem is when I get real close to the girl I get to comfortable and start gaining weight again. Atkins diet has been the best for me so far and I dont want answers about it isnt healthy.. blah blah blah. Its to much fat and protein and bad for you. Well congratulations so is eating way to many carbs like all america does. The reason I like it because it curbs my appetite and doesnt make me struggle about eating to much cause im not as hungry when im on it. But I wanna get good sugars in there every once and a awhile and Im wondering if switching my diet up and throwing in a apple once a week or so actually confuse my body and help me lose as well.