Some people are not looking for a short moment, but hope to stay with each other forever and express their desire for a lasting and stable relationship, not just for a moment's happiness.

1, moment: refers to a very short moment, emphasizing the brevity and flight of time. Forever: refers to a permanent and uncertain time, emphasizing persistence and long-term existence. Side: refers to being next to someone, indicating companionship and proximity.

2. "What I want is never an instant, but always by your side" comes from the internet, which is a sentence someone said when expressing love or commitment to another person.