Does the physical and the emotional matter in a relationship?

A few days ago a girl asked me a question, which was, is the physicist important in a relationship?
My thinking is, yes ... It matters ... But the relationship depends ...
Every human being, the first thing we notice, attracts us and even some of us are gawking is the physicist of a person, you could even say that it is the first requirement, you must first attract the girl to approach you and create a relationship ... But it is important to maintain a relationship?
Well, in many cases, if the love is not strong enough, the physicist is very useful ...
For a relationship to be sufficiently strong there must be many points in favor of continuing it that it against ...
Let's suppose that the 50% that attracts me to a girl is emotionally and the other 50% is her physical ...
How many people get bored with the emotions of another person, suppose it takes me about 6 years to know everything sentimental related to that person and get bored, after that, to exhaust it, is the physical ... And I take other 6 years in bored of his physical, in total I have been with that person for about 12 years ... (I do not say that it is so, if not that it is as an example)
But what if I'm only attracted to 50% of her feelings and only 20% of your physique ...
Maybe the most endurance is about 3 years, or less ... Why?
Because the 30% that I do not like about your physique counteracts 50% of your emotions ... And now, knowing more people, the odds of lasting with that person are lower more ... Well, there will always be people better than us .. .
Maybe this is one of the things why relationships do not last at all ...
So, the physicist is important, but, logically, how in the world there is diversity of tastes this is not always fulfilled ...

Nor do I say that we uglies have a kind as a curse only, we have to conquer with other skills we have ... which makes us more lasting relationships, because we do not depend on our physical, if not, when a relationship loses Intensity we seek the way to give it intensity again ...
Post subject to discussion ...