Wow thats a thought provoking topic. Well i hope to believe, though the current situation makes me not want to, that most people would do their best to save a marriage but at times there are things and people that can't be changed or accomodated. At that time its best to move on and its the most unfortunate thing to stay in an unhappy marriage for the sake of what others might think or say.
1- No physical or sexual attraction.
Thats actually a very tricky question. I just hope when you get comfortable with your husband the physical attraction would just kick in itself lol don't know how else it is suppose to happen. And in a case where there might not be any attraction than i guess it would create a big gap between the two which would at some point ruin things. But i think married people here would be better able to answer this question.
2- No intellectual harmony.
Thats something that strikes my mind every time i am asked what do you look to have in your partner. And everytime i get scared just thinking what if there is a huge difference between the intellect level. It is indeed a serious issue but i have seen people around me coping with it. So i guess it just takes time and you get use to it...but its still scary :(.
3- No ability to have children.
Aww thats really unfortunate :( Allah na karey aisey but yah it does get the mind twisted just thinking what should be done in a situation like that. One side says that where is the guarantee that if your current parnter is nt able 2 have a child that the other one wl be...?!? or placing yourself into this situation and thinking how would it make you feel being rejecting for no fault of yours? or how about just accept the will of Allah and going for adopting. And the other side says that everyone human being wants a child of their own, their own blood but is it worth divorcing or marrying again if everything else is going fine between the two. Again, very tough circumstances.
3a- You have problem.
What's that?
3b- He or she has problem.
What kind of a problem? Do you mean a disease or life taking illness. Well in such a situation it would be impossible to think of leaving your parnter or so i hope. Yes, it would be hard for you to think of your life alone but than i dont think anyone would be able to think of moving out of a marriage in such circumstances.
4- Lack of educational or financial harmony. She makes more money and you feel awkward. Like many well qualified engineers married to physician wives these days. Either engineers are laid off or earn very low.
Lack of education would be a no no for me because with lack of it wl come in alot of other factors. You got to think of your kid's future and the understanding level will most probably conflict. As for the wife making more money i am sure that is a big problem too and though i am a girl myself but i would be only comfortable if my guy earns more than me and thats that. But ofcourse one must work hard to be the sole earner and not think of getting rid of the wife just because of that. That would be unfair to the wife too and the wife should make an effort to make the husband as comfortable as possible so that he doesnt feel the difference that much.
5- Family pressure based on what mother or father says.
Well thats when the real men comes in...he should not turn a coward and hide behind the wife or his parents. He should be able to understand the situation and deal accordingly. And same for the women.
6- Make up the scenario. (open ended scenario)
If your husband doesnt respect you or your parents...
If your husband likes sitting at home and asking you to earn for the family...
If your husband abuses you...
...................................
However i really wish that couples nowadays give each other time and understanding other than just running off to divorce lawyers on small issues.