I'm sorry you're upset about this situation, but I don't know why. I'm not upset because of you, any distress I experience I bring upon myself with my own stupidity.
I honestly don't know why you think you have to apologise to me all the time. Why you feel so bad around me - tell me, what have you done that is so bad? You don't have to be this upset and invest so much in making things ok again. I completely understand that you consider me another filthy person, like Shane etc., and I really don't care. I'm not going anywhere.
Even if I did disappear, think about it - I'm not one of your close friends, I'm not a person you care about deeply; I'm not Amy. Just because I live close to you and you got desperate enough to have sex with me a few times doesn't mean you owe me anything or need to apoloigise. I was complicit in this - a consenting adult.
I'm not Kit. I don't want to be lumped into some group of girls you've managed to pick up that you lie to, cheat on and use to fill the time when you can't find anything better to do. So if there's anything you can do - it's not do this to me.
Stop feeling so sorry for yourself and apologising to me. We both know what the situation is, we're not stupid. Go and reconnect with the love of your life. All the best.