The status as a couple is not the end of a romantic relationship, but the beginning of a journey towards a common goal. Therefore, you still have to keep trying to get to know and understand your partner better.
There are many relationship tips that you can practice to get closer to your partner, one of which is to get close to their friends. For example, hanging out together, accepting them as they are, not hesitating to control the conversation, not trying to appear perfect, and not thinking they hate you. Maybe there are other ideas between you?