There are always the exceptions; where people fall in love deeply in a very short while and whose love last a lifetime, but these are usually superiorly secure and whole people, able to develop their love at super speed. The rest of us fairly normal people need time to properly and entirely fall in love, not to mention, to get to know a potential life-partner completely-inside and out.
There are people who get married by way of an arranged marriage and there are people who choose to marry before knowing the other party well or even before having any feelings for the other. This could only work if both parties are wholly secure and sexy stories in hindi know within, they are able to love any person who treats them with dignity and respect, who behaves well and who contributes rather contaminate. This way the souls are joined together first through the vows; and the unifications in the spirit-world is strong enough to withstand any challenge and obstacle. The moral of the story here again is love. Only when two people are secure, which means "already filled with love" to contribute the love to the relationship, could an arranged-marriage succeed and in most cases it does. The reason for this is that the parents are so involved in their child's life, which provides the security and love that the child could get married to any individual, the parents have chosen and make a success of it. Parents choose out of logic and not as a result of misconstrued emotional actions and feelings, something that happens to people all over the globe when sex is involved.