I'd say it's having friends who admire her for sticking to her morals.
When values are in opposition with behaviors, a common reaction is that people consistently change their behavior.
Explanation:
This change in behavior is often associated with goal setting. Goal setting often change a person to change his/her behavior to change specifically to reach his/her goals.
Goal setting triggers behavioral change which might oppose the true values of an individual. Behavioral changes turn to be positive in case of achieving goals in ill-health habits like smoking, drinking alcohol, or addiction to illicit drugs.
D. Coming back from drug addiction is always hard. Never pick the easy path when it comes to these types of questions.