How do i deal with unforgiving family member?

i fell out with family member recentlly. She got married recently and excluded me from her wedding and i was very hurt. i have hugged her and asked her to forgive me. i also sent card with wee message on it. Her Dad blanks me when he sees me and her mum gives me digs about it when she has a few drinks. its getting me down and im sick of feeling like a bad person help