She doesn't hate me. But she and I broke up a while back...the thing is we're still friends (though not like we used to be), and our relationship ended amicably and we still talk from time to time...I just still overthink it and then i lose sleep because I'm still hurting.
Coming from someone who's been in a similar situation before: let her go. Cease all contact with her. You'll be able to clear your mind, move on, and stop hurting, and if (by some odd chance) she comes back to you, you'll know she's a keeper.