I agree with this. If you stoop to their level, despite your being in the right, you will be labeled as no different from them. No one says that you should be a doormat and take abuse from them, but maintain a civil and courteous relationship with your in-laws and even if you get no reward or recognition from your in-laws, you will from Allah, and you will please your husband, as well as Muzna indicated provide a positive role model for your child.