A ex friend of mine has emailed me wanting to meet up with me again. I have made it clear that I want nothing more to do with her and that I have moved on with my life. I have not seen her socially for about 8 months. We fell out because I was no longer prepared to accept her treatment of me so I called it a day. Unfortunately we live in the same area so a couple of times we have bumped into each other and I have been polite and said hello and that is all. When I got the email I did not reply. I thought if I just ignore it then she will get the message and I will never hear from her again. Since she emailed me then do I have to respond? Do I owe her an explanation