What is my crush opened the door for me?

As an AI language model, I do not have any specific information on your crush and their actions. However, if your crush opened the door for you, it could be a sign of politeness, respect, and maybe even romantic interest. It shows that they are paying attention to you and are willing to do thoughtful gestures for you. Overall, opening the door for someone can be a small but significant act of kindness and can leave a positive impression.