The strongest pairs are formed by random circumstances and a smooth convergence. This behavior can be compared to buying in store only products.
Scientists conducted a study involving two groups of volunteers. It turned out that the strongest relationships are formed between people who met by chance. However the relationship itself was formed not immediately, but after quite a long period of companionship.
Researchers compared these circumstances with a trip to the supermarket. Someone carefully selects the products, studying their expiry date, composition, and in the end gets what she wants. Others gain in the basket everything you see, and in the end be dissatisfied.
The rush in the development of relations will not lead to anything good, say scientists. Therefore, the choice of partner and build a strong couple should be approached with the mind, gradually making steps towards a rapprochement.