Mutual understanding between the persons is very important to lead any relationship in a good manner. It is very hard to keep up a relations for a long time with out any under standing, in fact there is no relationship with out understanding. If both of the partners have same thoughts and attitudes, then the relationship will be very fine with out any quarrels and problems. This kind of mutual understanding is the most essential thing to follow in every relationship.
There is nothing wrong in making relationship with the person whoever understand us very well and have the same thoughts and attitudes like us. We will lead a happy life with this kind of persons, if you are interested with some person and s/he too have same thoughts about you with mutual understanding then you can continue your relationship with that person for a long time. It is very hard to live our life with a person whoever don't understand and give importance to our feelings, so do relationship with the person whoever have the same thoughts, feelings and emotions like you.