Whats your reason to cheat? Lets keep aside morality and get down to brass tacks!

I think people cheat in the absence of a crucial element in their relationship - be it love, attention, affection, the feeling of being needed etc. Nevertheless these are simply not excuses for infidelity, and I believe that those who cheat are those who are unable to be honest and upfront about their actual feelings not only to their partner, but are unable to be honest with themselves as well.