Few details are written and little information is known ... Let's analyze it according to our understanding.
Pink (the color of love) pursues sweetness.
Dolphins (the embodiment of career) are friendly.
The swimming pool is too small. When swimming back and forth quickly, I always hit my head because I can't stop, but it's not serious.
The swimming pool means that the environment you are in now is too small, which limits you and often hurts you.
You should also be an optimistic person. You can recover from the injury.
Then the pink dolphins pull over during the break, and their fins are placed on the shelf between the swimming pool and the audience. I also touched it twice.
This means that after the curtain call, you still need friends when you are alone.
If you are a dolphin, do you want to be looked at to please others?
What was the character of the former female classmate? Is there any personality that you admire? Maybe that's what you need to learn.