"You deserve better" is a codex of contradictory emotions wrought into three simple words. When one is in love, there is a rush of hormones and nervous impulses that implicate the mind and body in delightful mischief. However, the realisation that the object of one's affection may be happier or 'better off' with another, more suitable option is a difficult concept to digest.
On one hand, it is a bitter feeling knowing that you have somehow introduced misery into someone's daily routine by simply (unintentionally or otherwise) swaying them in your direction. On the other hand, it is quixotically soothing that they could possibly find happiness, though not with you. The joy of knowing your feelings are requited is unmatched, but at what point are you allowed to negate their God-given right to choose to be involved with you simply because you feel they would somehow be more content with someone else?
Is it when you observe that you are Rekha to the archangel Gibreel (The Satanic Verses, Salman Rushdie)? When, though your love cannot be realised, you want him to stay, hope beyond hope that he will stay with you? When, because he necessarily severs his affection for you due to your duty to family, you (metaphorically) throw yourself from a rooftop and stalk him on a flying carpet in an attempt to seduce him in your posthumous state? Or is it when you become his Alleluia? When you, his mountain-woman, are instantaneously taken captive by his innately seductive aura? When you find that he has come after you out of deep longing for your mind, your touch, your scent, you, and you take him into your heart assuming that he will be yours completely despite the warnings you receive from those closest to you?
I wonder about this every now and then, among many other love puzzles I may never solve. It is tempting to force separation and distance between you and the one who feels so strongly for you that he would deny himself the basic "better" that he deserves. It is all at once easy and difficult to become a monstrous thing that you believe he could never desire so that he will finally notice how truly mismatched you are. However, it is just as easy-difficult to accept that he has seen something in you that gives him a surge of happiness that he would in no way discard. One must sort through the ridges of the din and isolate those that will strengthen whatever it is that has been built with this chosen being, for emotional investments have been made. One must also scrutinise the viscous silence for those impurities that seek to defile this built thing, for it is wholly unreasonable to single-handedly make decisions for you both based on clouded judgment.
"This wondrous malady", as Petrarch called it, need not be a mangled, deprecated thing. It could be a beautiful paradox that unfurls between consenting, though weary, beings who want and may even need each other. And, though it may be brief, it is better to have tasted that wondrous pastry than to never have had such sugar coat your lips.