They were each the first person the other met at university. More precisely, they met just minutes before university officially began.
In an unfamiliar city, two strangers met, agreed to travel together, and gradually got to know each other.
In the end, they fell in love. But their love was like a sand dune standing proud in the Gobi Desert: each time the wind blew, it carried a little sand away, and with every gust, a little more was swept away. In the end, all that remained was a gently raised curve. Those vows of a lifetime together, flowing like water, were long gone. Who knows whether they evaporated or flowed out to sea?
Since you chose to leave, all I can do is wish you well. May you be safe and well, and may every corner of your world be as warm as sunshine. May you be safe and healthy, and may good fortune always be with you.