Zhang Jun (a pseudonym) and Sun Li (a pseudonym) had a relatively harmonious relationship after their marriage. In early 2007, Jin, a married man, became acquainted with Sun Li. They maintained close interactions, frequently contacting each other via mobile phones and text messages, which indicated an ambiguous relationship. After discovering this, Zhang Jun attempted to counsel Jin, and Zhang Jun's mother also criticized and educated Jin through his workplace supervisor, but all efforts proved ineffective. ...