Why would a spouse cheat if the marriage is good?

For exciting and intensely satisfying sex that is deprived or denied or not understood of each other's needs - quick judgments " My husband watches porn " If it's not porn - it's his drinking - he spends more time with his friends- he doesn't share the work around the house - he doesn't talk - doesn't respect my family - not working enough - Headaches - Fibromyalgia- TMJ - size - ED and the list grows from a page to a size of 2 PDR's.

Grass looks green elsewhere - begins the cheating - And to get what - ? SEX.

Millions of excuses - Reasons - constant fighting - arguments- And always something wrong with the other- no self reflection -

Why cant I breathe when I sleep on my back, I can breathe if im on my side or stomach but I feel uncomfortable since either my neck is twisted or my back is in pain, im physically healthy and my surroundings are clean so whats the problem?

My own imperfections is not the reason - you see …. !

Nothing perfect - It's not acceptable if it's not perfect - but only the other one !

Point being - Marriage seems to be good to others - it's not - it has no passion in it - and two people come to live together as room mates and share their expense - to keep their secret from others the lips get sealed - of having separate beds and separate accounts

Disney makes hundreds more layoffs as it cuts costs - BBC

so begins the first step heading towards separation and divorce which becomes the battle ground- my TV - my sofa - my bed - my - my - my ……..