Firstly:

 The relationship that develops between a man and a non-mahram woman, which people call “love” is a combination of haraam things that transgress shar’i and moral limits.

No wise person will doubt that this relationship is haraam, because it involves a man being alone with a non-mahram woman, looking at her, touching her, kissing, and speaking words filled with love and admiration, which provokes desire.

This relationship may lead to things that are more serious than that, as is happening nowadays.

We have mentioned a number of these haraam things in the answer to question no. 84089.

Secondly: 

Studies have shown that most of the marriages that are based on prior love between a man and woman fail, whereas most marriages that are not based on haraam relationships, which people call “traditional marriages”, succeed.

In a field study done by a French sociologist, the conclusion was:

Marriage is more likely to succeed when the two parties did not fall in love before marriage.

In another study of 1500 families, undertaken by Professor Isma’eel ‘Abd al-Baari, the conclusion was that more than 75% of love marriages ended in divorce, whilst the rate among traditional marriages – those which were not based on prior love – was less than 5%.

We can mention the most important causes of this outcome: 

1-    Emotion blinds one to seeing faults and dealing with them, as it is said: “Love is blind”. One or both parties may have faults that make them unsuitable for the other, but those faults only become apparent after marriage.

2-    The lovers may think that life is an unending journey of love, so we see that they only speak of love and dreams, etc. They never speak about the problems of life and how to deal with them. This notion is destroyed after marriage, when they are confronted with the problems and responsibilities of life.

3-    The lovers are not used to debate and discussion, rather they are used to sacrifice and compromise in order to please the other party. Often they have arguments because each party wants to compromise and please the other. Then the opposite happens after marriage, and their arguments lead to a problem, as each one is used to the other agreeing with him or her, without any argument.

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