This statement reflects the enduring nature of crushes and the idea that many people have a person from their past who they've had a crush on for a long time.
It suggests that these crushes can persist in one's memory and heart, even if they never evolve into a romantic relationship. It emphasizes the idea that these feelings can leave a lasting impression.
Overall, it captures the sentimental aspect of crushes, which can be a part of one's personal history and experiences, regardless of whether they lead to anything more.