Almighty has blessed human beings with an aesthetic taste. So making decisions
governed by such a taste cannot be primarily objected to. The Prophet (sws),
consequently on this basis advised men and women to have a glimpse of one
another before marriage. It is reported that in Madīnah, he asked Muslim men to
be careful about marrying women of the Ansār tribe since they generally had some
kind of defect in their eyes.
Similarly, he even terminated the marriage of a lady on her request since she
was much more beautiful than her husband .
So if you think
that in spite of all the good mannerisms found in your fiance, it is difficult
for you to stand your fiance’s physical appearance it is better to take this
seemingly harsh step of terminating your engagement than to psychologically
suffer all your life.