In novels with a female protagonist, did the male protagonist only have feelings for the female protagonist and not have any contact with other women?

I'm a bit of a clean freak. I can't accept someone being unfaithful after having a female lead. No reason is allowed. It's best if there's no woman before the female lead. If there's one, it's not the main wife. It's also acceptable if there's no child. I don't want the male lead to have other lovers. The most important requirement is that the male and female leads must be faithful and chaste. Don't be too sadistic. Don't say it, don't say it too white, please don't copy and paste it. It's best if you've seen it yourself. It's even better if you can add a brief introduction. It's okay if you didn't become the emperor at the beginning.
For example, although the male protagonist was conflicted, he could still keep his chastity in the end. Recently, he had been recommended by many people to be obsessed with scheming. The male protagonist was really too much of a stallion. Although he had decided to be the female protagonist, he still doted on so many concubines and had so many children. He was determined not to do it and could not accept it.
My requirements are relatively high, and I will try my best to give more points. Really, the type of answer I ask for will be added after the answer is adopted. Thank you, everyone.

Answer 1

I highly recommend "Too Many Love Rivals". The male protagonist of this novel is called Jun Liran. He is the City Lord of Ning City. Although he is the emperor, he has never touched other women. The female protagonist was a little indifferent, kind, optimistic, and willful, but her body and mind were clean. She did not abuse the female protagonist at all, but she did not abuse the male protagonist a little. I hope you like this fairy's recommendation. Muah ~😗