Why Is Vietnamese Chicken Salad So Addictive

I have no idea what it is about the combination of fish sauce, lime juice and garlic, but the very light dressing on this cabbage salad is addictive.
Dressing
1/4 cup of fish sauce

1/4 cup of fresh lime juice

4 packets of Splenda

2 garlic cloves finely minced

3 drops of sesame oil

2 T. Water

Ground black pepper
This will make enough dressing for four servings of salad
One serving of salad
3 cups Finley shredded Napa cabbage

1 cooked chicken thigh – shredded

10 cooked and cooled snow peas cut in thirds

3 green onions – chopped 

Handful of cilantro chopped

1/4 of Avocado – cubed
Mix together and dress. Enjoy!