Why would someone want to follow you if they bullied you back when you were in school?

Like they don’t understand I don’t want them following me I have hit X some many times they still keep requesting I don’t understand? Like why now after years that I have not seen this person, like yes I have forgiven and forgotten this person but it’s so weird to me. There not an enemy but I just never liked the person was not nice to me.
Why would someone want to follow you if they bullied you back when you were in school?
Post Opinion