A soldier married the wrong person at the gate of the Civil Affairs Bureau. What novel is it?

A soldier pulled the wrong person to get married at the gate of the Civil Affairs Bureau. Synopsis: Sue (the heroine) is extremely sad because of her ex-boyfriend's betrayal. She came to the Civil Affairs Bureau, but she didn't marry anyone. At this time, Huang (the man) pulled the wrong person in a panic, so they got married in a fog. "Chief husband Meng Mengda" returned to the age of 80, married a rascal and gave birth to a child.