How are you going to know if the sex if phenomenal or that she can be trusted BEFORE you marry her if it's arranged? It's not like you're going to spend a whole lot of time with her before hand and you certainly can't have sex with her. Believe me, arranged marriages aren't for YOUR happiness as much as it is for your parents and what they'll gain from it.
Like I said, it all depends upon the person who picks. That is the person who needs to know how they will match up, and also would know what the experience would be like. Since it is an arranged marriage, you might know nothing of the person before they are picked. The person that it is picking would need to be really psychic. Some people are and can read people really well. Some people cant read people well at all, and it doesn't really matter much that they "get to know" the other person before marriage.
There are people who can read other people without at first glance better than other people can know other people after spending 25 years with them. People can hide things for years about themselves and then others are surprised when they do something new that seems out of character, but the reality is that they never really understood them at all, and it actually was very much in character.
A highly psychic person could tell that about a person without spending much time with them. Some people are gifted in reading people and others aren't. What I'm saying is that it is best to consult the most competent person possible to determine the compatibility of the mate. With so few people who are gifted at reading others extremely well, it stands to reason that if these few people are the ones arranging marriages, there would be a lot more happy marriages, rather than leaving it to the individuals to get married to determine whether they are right for each other, when neither of them are really psychic at reading people.
Marriage is a big investment. Why leave a successful marriage to chance when you don't have to?
Bottom line is that there have been many happy arranged marriages, because if none of them were happy, then no one would ever go along with it. Granted, there are a lot of bad ones, but then, there are a lot of marriages that are just as bad that weren't arranged marriages.
I think that the subject of lack of free will in marriage will come up, so I will touch on that.
There can be happy arranged marriages, and if a soul does not want an arranged marriage, my advice is not to be born into a family that believes in them.
If the soul exists and it has free will, it must logically be able to choose which family it is born into,or if it is born at all, otherwise, true free will cannot exist. The only way that free will can truly exist is if someone has the ability to make every choice at EVERY point in one's existence. Otherwise, what you have is merely a limited degree of options in a certain situation.