A lot of the frustration men have towards women is based on the fact that the majority of women seem to be pathologically unfaithful. It doesn't matter how alpha you act, these days women cheating on you is almost an inevitability.

I think the problem is most people are still trying to live by these values of Christian marriage which is basically total monogamy and unfortunately such idealistic values run contrary to human nature, especially the nature of women.

Basically our whole society is built around a concept that is entirely false and unworkable in reality, especially in a permissive liberal society that does not punish cheating.

I have read that in non-Western countries without a Christian heritage cheating is typically regarded as more acceptable and expected because they do not recognise the concept of monogamy in the same way Western Christian societies do. This is especially the case in some Asian and African countries.