Hey
@Tanko just letting you know you can get sued in this day and age if you can prove your feelings were hurt. If you forget my birthday “again” you will be hearing from my lawyer. I can prove stress and harm from you. I am the only poster last year you forgot. I still have emotional damage from last year.
In general, you can't sue someone just for hurting your feelings unless their actions involve defamation, intentional infliction of emotional distress, or harassment. The specifics depend on the laws in your jurisdiction. For a strong case, you'd need to prove severe emotional harm and that their behaviour was extreme or outrageous. Consulting a legal professional can provide more tailored advice.