As the saying goes, courtesy is light, affection is heavy, and price is heavy. Don't care too much.
If it is too expensive, she will be very stressed. Imagine that the fire will give you a gift next time. How should she choose? Is the choice expensive? Isn't this a comparison?
Childhood friendship is the purest and will not change after many years. Please cherish. Don't worry about a gift or two. I wish you study hard and make progress every day.