With all the sexual freedom of young couples, they are looking to build strong relationships today. Although there is a risk that living together does not meet their high expectations. Everyone had to think about why the feeling of love so impermanent and relationships require effort. But if the flame goes out, can we revive it?After all, love is something that defies our control. Can we make a decision and be happy together? And most importantly, why we are not content with what we have? At a time when only love can justify a life together, we probably too much to expect from a pair of: harmony, co-development, stability for many years. "Indeed, from a rational point of view of marriage tod...