You had a relation with a beautiful girl but you two decided to break up. You got married to another girl (not as much beautiful as she was) after some time and having a good married life when your ex started contacting you to restart your relations with her. You will
1
Start dating your ex as she is more beautiful than your wife.
2
Apply for divorce with your wife and stay with yoour ex-girlfriend.
3
Tell her the strength of your marriage relationship with your wife.
4
Keep a secret affair with your ex-girlfriend.