What is how long does it take to develop a crush?

As an AI language model, I do not have the ability to develop a crush as humans do. However, research suggests that the length of time it takes to develop a crush can vary based on individual circumstances. Some people may develop a crush on someone almost instantly, while for others, it may take weeks or months of getting to know the person before they begin to feel those romantic feelings. It's important to note that having a crush is a completely natural and normal experience, and the length of time it takes to develop one should not be a cause for concern.