Why would a spouse cheat if the marriage is good?

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 ……..

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.

If there was only one man remaining on the Earth, would this be regarded as extinction?

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 !

What is a good investment portfolio for someone starting in their 20s? 90% VT and 10% BND for a Roth IRA then 100% TDF for a 401k?

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