Well the relationships are the most expensive investment one makes. In relationships you do not give your money or just time. In them you give your emotions and as far as being human beings is concerned it is most important to have associations which are based on the innate want of being with each other. Be it marriage or an affair, the association which is nothing but an urge to come up with a customary union.
Confused by what I meant by the above statement then let me elaborate. In this world we all our supposed to be with someone and thus there is lot of requirement to seek some kind of completion in the other person. Thus in a relation we need to be reasonable and give the other person their own space. If you tend to be too occupied with the attention of the other person then you may feel choked yourself. Thus, in same manner like you demand your time you should always give the other person their time and allow them to be with their own friends and family from time to time.
Often we look at various aspects like money, same profession etc to be with