i think W_L's opinion best describes the sexual freedom or leniency that we all wish society gave us. I have to to agree with his post, at least in terms of the situation being a complex one
My personal thoughts are that anything a sexual encounter can do to clear someones mind or awaken a hidden compulsion, an open minded conversation and good communication can do as well... maybe even better.
at times we look for excuses to express our suppressed carnal side, which as i said before because of societal pressures we hardly can, not without feeling some sort of shame.
it's a hope, a hope that a small act of sexual weakness, on the cheater's part may open up their minds to you, or the experiences they could possible have with you in the future... well, i always say, hope is clutching in the darkness, and to me having sex with someone in a relationship is nothing short of grasping at straws. if not for some, just trying to dance with a taboo