Honestly it’s a lot more complicated than that, most of the recent arcs have been less about cheating men. Arc 15 had the villains be a whole village of scum, arc 16, in which Lüxia transmigrated into a man, had the female lead be the cheater though the male lead was the main villain of the arc he never cheated on anyone, arc 17 was a complicated example the female lead forcibly had her lover’s soul enter his descendant‘s body killing the soul, so technically he never actually cheated. Arc 18 had a female villain whose villainy had nothing to do with infidelity, Arc 19 same thing. Arc 20 yes there was a cheating man but he wasn’t the main villain.