What's the Difference between Real Love and Fantasy?

Back in high school, most girls had a teenage fantasy called 'I have a crush on "Mr. too cool". As we were children too, we had those Disney fantasies. Something true about fantasies is that they get more complicated as we grow older and get more layers to disguise them who said we're growing smarter and wiser whoever said that he must be a fool or has the American dream curse. As adults, we may seek a romantic partner for all the wrong reasons including seeking to fill an emotional gap or correct past mistakes. However, most of our fantasies are linked to familiarity in that when people grow accustomed and in love with certain personality or physical traits like those of their parents, for instance, they tend to fantasize and fall hard for others with those traits. But what's really the difference between real love and fantasy? And how can fantasies be dangerous for our mental health? Fantasy is a bond between two people, not three that puts bei...