We can't control whom we love. We can't control what kinds of foods taste good, either, but we know which ones are healthy and which ones are unhealthy. Perhaps there are loves that are healthier than others, too, but love, unlike food, is not necessary for our survival. Trapping others in our emotions and personal dramas, then, is both egoistic and selfish, for it promotes preferential thinking -- a clear sign of a non-functional civilization. Further, the preferences created by love are meaningless, as I'm sure anyone who's experienced unrequited love can attest. Everyone, no matter their gender or how their smile or confidence makes us weak in the knees, must be judged by the same standards.
I highly, highly doubt that anyone you've ever loved was chosen because they were among the best and brightest of mankind. Love may not be an illusion, but its benefit to society certainly is.