What's the difference between Out-Laws and In-Laws?
Answer: Outlaws are wanted.

Jokes apart, why is "hate-my-in-laws" a universal scene? Why do people who love everything about their spouse hate their in-laws? Why do conflicting relationships with in-laws most of the times result in marital discord?

Since time immemorial, every society irrespective of caste, colour, and creed have fought its in-laws. Is there just no way that the peace can be kept and love not lost between?
The most stereotyped of the in-law relationships is definitely the mother-in-law and daughter-in-law duo. Why are the most loved mothers transformed, or at least projected, as most hated mothers-in-law? Who is this woman you are destined to call and accept as your mother-in-law? What is it about them that have been giving Ekta Kapoor's Balaji Productions material to churn out soaps after soaps?

Let’s keep aside all the stereotypes and prejudices or even personal hatred and define a mother-in-law...

We believe that moms were made because God couldn't be present everywhere. If that is accepted then we also have to agree that God made Mothers-in-law because mothers couldn't come along with us to our married homes.

But then we have always presented mothers-in-law as crooked, unprincipled and scheming characters always wrecking the peace of daughters-in-law. Maybe we could, after all give them also a single chance to justify or at least explain all the heartlessness that they are branded with.

By moms-in-law, we are mostly referring to the husband's mother, as most conflicts arising are between the saas-bahu and not the saas-daamad duo.

First things first, why do most women and men have trouble with their mothers-in-law? They always complain that these women are bossy, nosey, fussy, and very evil. The entire problem in the first place lies in perception and relation to what they have to say. Women usually are used to advice and counsel whether asked or unasked for. And, mothers-in-law also tend to give their suggestions with a feeling that they know best and also because they only want the best for their child's family.

This good-intentional advices and suggestions are termed as nosey and arrogant. Most women tend to feel that they have no say in their husband's life with the mother occupying all the space but forget their own mother's who are also doing the same with them. Why the hatred towards a lady who has given birth to, nurtured and presented to you an extended part of her own self? (Fathers-in-law in most cases are spared of all hatred and dislike. Lucky people!)

Marriages usually start off so nicely. Everyone cooperates. Things usually run smoothly. But somewhere along the way, marital disputes pop up. This is of course natural, but these can rise to dangerous levels if not dealt with correctly.