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.

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

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

My wife always forces me to suck my bulls dick and balls and even Lick his cum from her face and tits and they even humiliate me very badly plus she always talks about big Dicks everywhere everytime and show me pics of huge cocks what should I do ?

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

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

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

‘Amazing Worlds of Science Fiction and Science Fact’ Review: An Education in Exoplanets - WSJ

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