My sister lied about her baby's gender and when she was due. I am so mad I want to sever ties with her and I want my gifts back.
Why is this a reason for you to have to cut off your sister?
I felt betrayed by her. She asked me for a birthday present which was really expencive and it was ruined when she lied about her due date.
This seems like an odd issue with your sister but it is not good to cut off your family. You will need them one day.
I don't care. I'm a selfish person and don't give a fuck what I did to a family member.
Well you might regret it. Why don't you talk to her and tell her how her lying made you feel.