The problem isn't behavior, it's a combination of human nature (specifically hypergamy in women) and gynocentrism (which rewards and encourages women to act on their hypergamy.

Until human nature changes (unlikely) and/or society stops being gynocentric (unlikely), it's simply illogical to trust women, and thus MGTOW is the logical choice for men.

NYMag: Women Are Now Cheating As Much As Men, But With Fewer Consequences
http://nymag.com/betamale/2016/05/women-are-now-cheating-as-much-as-men-but-with-fewer-consequences.html

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