While with you and experiencing your lifestyle, he was immature, undeveloped, like a caterpillar. Spending every day the same way, endlessly crawling through the dirt with other undeveloped and immature creatures like himself. Always struggling in vain to satisfy his appetite, but never able to be fully satiated and content. Always feeling empty, always a gnawing hunger pain, always attempting to fill it with the same old unsatisfying and distasteful fare, always wondering how long this meaningless kind of life can go on.
During his time with you, while you remained in the stagnant mire, he slowly encased himself inside a chrysalis, hard and dark; surviving, but unable to truly and fully live. He blocked himself away from the painful light of day; while, at the same time, struggled to escape the snaring barrier he had built around himself. For all intents and purposes, he was not actually with you, not actually invested in you, not actually interested in you. Instead, he was alone, suffering from a self-imposed isolation.
It is true that the bright sunlight was painful to him, but the darkness eventually became unbearable.
Changes churned from deep within; sometimes only unsettling, other times full of pain. He finally gathered the strength to bear up and fight against the darkness, against the prison that he had created for himself. He fought long, and he fought hard. He winced as the bright beams of light began to shine on eyes that were for so long accustomed only to darkness. He continued to fight against the walls that he had built around himself, tortuous walls that had held him prisoner for far too long.
Then one miraculous day, he fully escaped those binding ties; ties that had initially promised him so much freedom but, in reality, had only trapped him in so much misery. He emerged from that miserable prison, not as an immature and undeveloped caterpillar-like creature, but as a completely transformed being. Now, he had beautiful, fully-developed wings which could take him to heights he had never before imagined. Now, he had no desire ever to return to his old life as that despairing, crawling creature. Now, he no longer yearned for things that offered only lonely, miserable emptiness. Now, his only desire was to fly up and up, higher and higher. Fleeing from the filthy and life-squelching mud that he used to wallow in with you, and in which you still remain. Flying instead with his life-long, chosen, winged partner, who had been patiently and eagerly awaiting his transformation that long while. The two mature, now-beautiful creatures were finally free to fly through the world for the rest of their lives, surrounded by peace and contentment…together.