Years ago I blocked a friend on WhatsApp and Facebook as they said something in person which was very hurtful in person and a patronising tone. It affected my mental health. I unblocked them a while back and I am not blocked on WhatsApp but blocked on Facebook. I wish I had told her at the time how hurtful she was as she probably didn’t realise what she had done and it ate away at me. Is it worth trying to contact her or move ok?