I personaly think infidelity is hands down wrong with out any excuses. The sad part is that people often get into marriage without fully understanding what it means and represents. When you say youre vows " for better or for worse" i think that should be carried through, its a promise u've made to a person to stick by their side. Hearing the excuse of not getting sex just ****' me off.
My paretns have been married for over 23 years and my dad was unfaithfull. I dont think i can ever forgive him for that. Though not all cheating stories end up with a child being born my parents case did. But people see this as a pure sex thing when really its bigger than that. When even comtemplate'in infidelity people need to consider thier spouse, their kids and even possibly future kids.