It's wrong for a girlfriend to cheat on her boyfriend.
Marcy is out with some friends while her boyfriend Dave is at home when she is approached by a handsome guy Clark who asks her to come home with him.
Marcy wants to respond to Clark's request.
Marcy tells Clark that she cannot go home with him as she has Dave waiting at home for her.
Marcy tells Clark that since he's so handsome she'll definitely go home with him tonight.
Marcy comes home to Dave, and they share stories about the night with each other happily.
Dave finds out that Marcy has violated his trust and feels sad, depressed and used.