Answer:
The phenomenon Jess encounters is Rebound effect.
Step-by-step explanation:
Rebound effect phenomenon is a situation whereby the preventive measures you take to manage a problem cause the problem to return. In rebound effect, trying to withdraw from a behavior often leads to the opposite effect.
In Jess' case, she was so addicted to cigarette, but she has quit smoking now. She is trying too hard not to think about cigarettes, but her plans bacfired due to the rebound effect phenomenon. She is experiencing an opposite effect because instead of her mind to get off cigarettes smoking, she is having a strong urge to go back to cigarette smoking