Kenapa yek?

I have always got this thought in mind: Why do men who claim that they are not happily married to their wives always have many children? These men always have affairs outside of their marriages, giving impressions that they are not happy, not satisfied with their wives, not content with their marriages bla..bla..bla.. Tapi tengok anak berderet-deret. Kenapa yek?

Is it obligatory for them to have children out of an unhappy marriages? If their wives don't satisfy them whatsoever, why do they bother to 'do' it? Or why bother marrying them in the first place?

But then again, tu semua alasan je nak ada affair kat luar, kan?. Ego booster kut?