Especially in the beginning stages of dating, if someone new has a critical opinion about your appearance or actions, it’s a sign that they aren’t accepting the real you. Besides it being rude, it can be bullying and possibly even abusive depending on the critique or insult. Your crush should be choosing to spend time with you because they like who you are and what you’re bringing to the table. If you are trying to change each other, what’s the point of dating each other in the first place?