Desire can control a person, it's a physiological inevitability, nothing more to say about it.
However, Chen Mo's situation was quite different from the average person. After experiencing such things repeatedly, a normal man would consider it torture... But Chen Mo had a secret technique within him that changed this situation. No matter what, he could not possibly be seduced by women.
So he rejected An Qi, telling her to calm down first, believing that she would understand eventually.
Young men and women often make mistakes because they act without thinking when their heads get hot. If they take some time to cool down and think things over, many mistakes wouldn't happen, and An Qi didn't need to enter that quagmire.
If Chen Mo was once just one of the many guys, he had changed.
He knew the destructive power he held over women and couldn't drag more of them down.