4. “Having a drink with female coworkers is part of my job.” – You justify having drink with female co-workers.
“He doesn’t think I’m that gullible, does he?” Even if such an activity is truly part of your job, it likely won’t sit well with your girlfriend. She probably won’t like the fact that you’re going out to drink with women no matter how you put it. Instead, it’s better to bring home take-out or dessert to show her that you care.