If the girl that dumped you wrote you this????

She wrote me an email last week saying we shouldn't have contact and it was pretty straightforward. Last night I got an email saying that she was thinking about me and apologized for how she broke up with me (she dissappeared on me). Then she said keep me updated on what you are up to. It was a completely different email then I got eight days ago. I was in no contact with her and then I got this...My question is: What is the intent of this email? What does she want? To be friends? To feel better and rid her of her guilt? Should I write back? When and what should I say? I am confused. I want her back but only if she changed and didn't hurt me again, but how do I come across in a way where she knows that what she did was wrong and that I want something better? Need some help here.