Our personalities are formed by the experiences we live through. Some people make bad choices and behave accordingly and even after realizing they've made a bad choice they continue they're harmful behavior. We need to accept the consequences of our actions while understanding that asking someone else to live with our bad choices isn't fair. When you continue to do things that hurt others expect them to walk away. I'm assuming that you love this woman because she respects herself enough to not choose to do things that hurt others. When you ask her what she wants she may not feel she should have to tell you. You should already know and if you don't then you probably aren't the person she is meant to be with.
To think someone else is pulling her away or that her hormones are causing her to make the decisions she is making is telling me that you are still not seeing that your bad decisions led to her leaving. If you were to see her with someone else that put her through the pain that you put her through, would you advise her to try to work it out with him?
It sounds like you made some bad decisions in your life. You need to fix whatever it is within yourself that led you to make those decisions and move on with your life. Grow from what you've learned (when in a relationship your actions directly effect your partner) and move on. Try not to continue your pattern of bad choices. Don't beat yourself up-we all make mistakes. If you have learned from your mistakes you will be in a better position to be in a relationship.
Remember-you won't ever find true love until you love yourself.
