Since your my friend, I'll help you out on this one. Alright, your ex likes you, and you don't feel the same, well, try to tell her that you're already in a relationship with another girl, that'll probably stop her. If she blames everything on you, tell her to prove that's true, and she'll stop because she doesn't have any evidence on that. You ran away, by all means, that's your choice in life, you can regret it by yourself, and nobody else's opinion matters on that. Trust me, I've dealt with this before, and appearantly, this isn't new to me. Need more, just PM me, I'm here to help you out here buddy, only your friends and family can help, other than that, you've got complete strangers on this site.