You shouldn't marry somebody you can't trust
Claudia is dating a salesman, who lies to his customers to make sales, and her boyfriend has just proposed to her.
Claudia wants to give him a thoughtful response.
Claudia decides that people are consistent and that he can't be trusted with anyone, so she breaks up with him.
Claudia thinks about it and decides that her boyfriend will be honest with her, so she accepts his offer.
Claudia's ex-boyfriend sees that his way of living has cost him a good relationship and begins to change.
When they marry, Claudia's husband lies to her just like he lies to everyone else.