Love and sexual attraction is totally different thing. As long as you get married Male usually lose interest and sexual attraction on female and want to try new things. That happens to me too and its like both biological and mental.

It's not really a moment when the moment is stretched over months and years, but yes we are all human and all make mistakes. That does not absolve us of the consequences.

Way to minimize cheating. Describing it as a “moment of weakness” makes it sounds like it’s a minute of lapse of judgement, meanwhile we’re talking about pre-mediated, long-term cheating.

A "moment of weakness" leads to a one-night stand, not to however long a fling needs to be to be dubbed an "extramarital affair."