Qu Fulan was aware that Pei Yuan had maidservants, and he didn't disperse them after marriage. Ren Hua didn't mind either. How can one say it? It all boils down to cultural influences.
Since childhood, she was exposed to the idea of the Three Obediences and Four Virtues for women, and husbands having multiple wives and concubines. Some women may feel uncomfortable but won't stop their husbands from taking concubines, nor do they have the right to stop them.
But Qu Fulan was different, if it were her, she couldn't accept it.
Actually, before they got married, she had brought up this issue, and his viewpoint was the same as hers, which is why they got married.
After the two had dinner, they busied themselves separately again.
They were busy till evening when Qu Fulan returned home, Pei Ji'an hadn't come back yet.
