It is good to encourage your boyfriend to stay sober.
Samantha's boyfriend has been binge drinking large amounts of alcohol every night for the past few months.
Samantha wants to help her boyfriend to be happy.
Samantha tells her boyfriend that she is worried about how much he is drinking, and gently tells him she would support him even if he stopped drinking.
Samantha knowing her boyfriend enjoys drinking, never says anything and starts drinking with him.
Samantha's boyfriend slows down his drinking, and eventually gets to the point where he only drinks on special occassions.
Samantha and her boyfriend start getting into drunken arguments and end up splitting up.