Why do I use the liquid without nicotine?

I quit smoking cigarettes with tobacco and do not want to return to this addiction.
I want to experience a taste of the exotic (eg Mexican fruit), but there is no possibility to buy them.
I'd like to eat tiramisu cake, but I'm on a diet and do not want to break it.
When we meet with friends instead of very harmful hookah we take a delicious liquid for electronic cigarettes. (eg strawberries with whipped cream).
Nicotine enhances the flavor, but it is harmful to health and is addictive.