...hmm..the concept that majority of the couples have nowadays is " i want to be happy and that is my right to ask for" and another one as 50%-50%.

Now there can be many reasons for marital failure much nowadays as compared to in the past.

The negetive pattern of thinking which worsens the situation and mostly seen in many houses. Where Both of them respond eachother back and forth with negetive comments continuously which in return makes the conversation hostile or full blown fight...Every house has one or more than one reasons to fight on everytime as an example throwing away the garbage or cleaning the room etc...when these fights over small things carryon it gets both of them angry and then they say mean things to eachother covering failures and past mistakes. Usually it is ended with a knife on the heart. I think that both of them should control their tongue instead of using it to hurt the other afterall they hve to live together.

second reason jisse mujhe bari chir hoti hai...woh hai..when one of them tries to finish off the identity of the other person's feelings, thoughts, ideas, personality, making him/her feel like a useless tool in the home. Usually not allowing her to meet her frnds or get social with the orders that her husband doesnot like it... making him/her feel that she is the problem maker all the time..or phrases like " i forgot how lucky i m to be married to you"..imposing their choice on the other one...I think here partners should listen and respect eachother's viewpoint and bring concern in their communication.

third reason would be when both of them are tired of eachother's mind reading negetively.and when they do talk abt it they get tired of explaining their innocence.
trust and positive outlook is the requirement with proofs...and when u see the partners have started to ignore eachother or avoid communicating or seeing eachother...i think that is the time when divorce does apart them.

I think for any success of relationship one should put forward the happiness of the other one before herself/himself...compromising where needed...and staying strong where needed...and yes they should shoot "I" with "we" to really enjoy marriage blissfully.