Yo man,
Women with wacky emotions and self-esteem problems are so sad. God knows we can quickly learn to love them (which is why it's a good idea to avoid dating them).
Nothing is harder than leaving one of these women because they seem to need you so much, and appreciate so fully what you do. But a lot of the time you can do better, and as you start to build confidence in yourself and realize your dreams, maybe you'll start to see what I mean.
Oh and these women tend to go from needing you to disdaining you in a heartbeat, especially if you let your guard down (happened to me once, see a post in the djb about this type of women). In my experience, women like this have less capacity for stable love.
But hey, leaving them is really hard, I feel that. Anyway, all the best,
Izza