How did Rong Er, the Queen of Dugu, and Jiro meet each other?

The play does not explain how Rong Er Kazujiro (Zheng Yang) met and got married.

In the TV series "Queen Dugu", she married the Yang family and looked like a small jasper. Wei Chirong was originally the eldest miss of Wei Chijia, Wei Chikuan's sister and Wei Chiwenji's aunt. After the relationship with her husband Zheng Yang broke down, she thought it was the secret of Dugugalo, and later she held a grudge against Dugugalo because of her father's death. In order to get revenge, he let his niece Wei Chi Wenji seduce Emperor Wen of Sui Dynasty, so Dugu Jialuo was heartbroken and his feelings with Emperor Wen of Sui Dynasty were cracked.

Rong Er and Jiro finally parted in life and death;

Emperor Wendi's army met with stubborn resistance outside Jiankang. Yang volunteered to fight his way out, but he was shot by the enemy's arrow and died in the battlefield. Emperor Wendi's army finally went through all the hardships to destroy Chen, and the war to unify the north and the south came to an end. If it weren't for Wei Chirong, his Zheng Yang might never come back. Even Wei Chirong, who lost his last relative, added this account to Yang Jian Gallo, vowing to make them wish they were dead.