It's bad to cheat with your friend's significant other.
Danica has been single for a long time and envies her best friend for her sexy boyfriend.
Danica wants to sleep with a handsome man.
Danica stops lusting after her best friend's boyfriend and finds someone sexy on Tinder.
Danica endlessly flirts with her best friend's boyfriend until she gets to sleep with him.
Danica's best friend is happy in her love life.
Danica's best friend finds out about the affair and is brokenhearted.