Let’s bring in the other angle here …
True love only exists with Allah (SWT) and RasoolAllah (SAW) … My Shaykh said, love is about being blind to their faults. Of course there are no faults in Allah (SWT) and His Rasool (SAW) so it is easy to fall in love with them… before marriage 
Early in marriage and before marriage we can like other people, but it is almost impossible to be blind completely to another person’s faults. The question is not whether it is possible to have full on love before marriage, but whether it is allowed to have that … love is only felt for sure when our desires for lust have been passified - when we have taken it out of our system … we only get to see a small piece of a person’s outwardness when we first meet … slowly we learn about them - the question here is do we indulge in their private lives before marriage or after marriage?
According to Islamic tradition marriage is a contract that legitimises love to develop … it is hence permissible purely to marry a person based on hearsay about them and by meeting them only once, seeing if they look visually pleasing and trusting those around you to deem it a good match. It is possible to have love before marriage - just as it is possible to have sex before marriage … Soon after marriage a different type of feeling develops with the spouse and it is this that love is about … it is not that initial butterfly in the tummy feeling when two people come close and smell the scent of one another and become elated, it is not that eye battering and smiles that are exchanged … displays of interest and affection … which are like love but not quite the same.