You shouldn't date someone if you already have a partner.
Carl is very attracted to a woman he met during a business trip, but he is already married.
Carl needs to decide whether to pursue a relationship with the woman he met on the road.
Carl decides to dispose of the woman's phone number and to not pursue a relationship outside of his marriage.
Carl calls the woman he met, without mentioning that he is married, and asks to meet up with her on his next out of town trip.
He doesn't do any further harm to the woman that he met, and he can work on his marriage to find out if it can be salvaged.
Carl begins to feel guilty about the fact that he is betraying both his wife and the woman that he met on the road.