What is Cheating? Is it a dysfunction? How does it affect Relationships and Marriage

In the case of which I will present now and try my best not to be bias as a woman, now here goes! "A man married girlfriend is having an affair with a married man. She is smitten with him because the sex is the best she ever had. He is a caring person who treats her well. Her husband has erectile dysfunction as he is a serious diabetic. That apart, her husband takes care of her every need. She likes this guy so much that she is thinking of encouraging him to leave his wife. The man (the girl friend) told her what she is doing is foolishness but, as he said, she is smitten. What more can he tell her to bring her to her senses?"

as for this woman it is understandable that she would have urges to have sex but the responsible thing for her to have done is to do the responsible thing and support her spouse as he tries to cope with such a traumatic situation in his life. This clearly shows the high value many women place on love, marriage and companionship as against just satisfying their sexual desires.
The husband maybe aware of his wife indiscretion but as his wife always comes home he may accept it even if he doesn't like it. Seen that the husband have this problem he may know within himself that the wife is most likely to stray away; that's why he may try to take care of her other needs but it seems as though that is not enough, one may tend to think in situation like these most women will feel incline to cheat.

However, there are no winners from having an affair period. The lies, the sneaking around, the fear of a slip of tongue, the uneasiness felt regarding comments made by your spouse, the discomfort of being seen in places you not suppose to be and so on are not worth it, on top of all that it is just wrong regardless the situation.
Whenever you consider cheating on your spouse put yourself in their shoes first and empathize and whatever you feel that's how they going to feel, as the old saying goes "do unto others as you have them do unto you."
A man having erectile dysfunction does not affect other parts of his body working sexually, if a woman cannot handle the situation she should discuss this with her partner, as marriage such as this can only assemble to be base on sex, where is the love, trust and respect. As a woman you should either do one of the two things stick with your husband or break it off with him instead of cheating, as one recall the vows taken is said for better or for worse and this is one of those times.
Nothing good can come of having an affair because of lack of sex because your husband has erectile dysfunction, cheating with a married man because of the lack of sex in a marriage is not okay as the husband erectile dysfunction is not his fault.