everybody cheats?

Why do we cheat? A man and a woman in the perfect relationship aka the perfect couple but are they really? He’s tall dark and handsome and a perfect gentleman. He is her dream man, the kind of man you marry. He’s charming, funny, smart, sensitive, understanding and has great smile. And to top it all of the parents love him. She’s even better. She got a cute face and a nice body, not to big and not to small. She’s just the right height and just the right weight. She the kind of girl you see and you just know. Every fiber of your being reacts to her like she came from you and made just for your. She understands you more than any of your boys ever could and brings out a side of you you never knew you had. She the kind of girl you bring home 2 mama. 2 perfect to be true right? That’s because it is. Both of these people are cheating every chance they get. They love each other and would die if they ever lost each other but that doesn’t stop them. Maybe most of us know people like this or have been in a situation similar to this ourselves. So perfect that you know something has to be wrong and your not sure if you want to know or not. Idk y but almost everybody cheats. Men get the bad rep as the ones most likely to cheat and that’s well deserved but that’s just cuz women know how not to get caught. When a man cheat its in the heat of the moment its all lust and passion, but when a woman cheats its emotional and that’s so much worst I think. But why do we do it? Can anybody tell me why enough is never good enough?