It means you had a fight. It doesnt sound like a healthy relationship though (given the fighting and lack of respect for set boundaries, or even the lack of boundaries entirely), but such things can be repaired if both people are willing. Which she doesnt seem to be (and honestly, that sounds like its for the best).
In the future, remember this:
People need space, even if we dont admit that to ourselves. I make sure to deny about 1/3rd of my impulses to invite my girlfriend out or talk to her and we have a wonderful relationship (i do this because i know i can be a bit clingy - not only does it make her feel good, but it makes me feel empowered).
Communication is really important, with your next partner make sure to sit down and clearly define what is appropriate and what isnt for both of you once the relationship has been set (first month of dating, maybe?).
Set boundaries, make time to be apart, make time to play together, to hang out and be intimate with each other (intimacy isnt always sex, and planning sex ruins it) - dont let it get boring or too "coupely". Another good thing to do is to have a set, monthly relationship check up to see what is working and what isnt - be honest!
Dont be afraid that if you define what you want, and she defines what she wants that you wont get along. Because if you arent what the other person wants, its never going to work. If you are always frustrated with your partner, you either need to talk to them about it, change your perspective, or move on.
I will concede to the fact that your ex wasnt being communicative when she said "i just dont want to hang out", but women (i know this isnt PC) are like cats. The more they are pressured, the less they want to do something and the more they retreat into themselves.
She might have said she loved you on your recent phone call, and she may just mean it, but that doesnt mean she wants to be with you again (do you feel like you need her love?). Nor does it mean its going to be good to get back into this relationship, which you yourself defined as emotionally abusive. Let it go, tell her you cant talk to her for a while, and spend the time you arent talking getting her out of your life and social network. If you still feel she is worth having as a friend after you have totally separated yourself and let go of your "baggage" from the relationship, then try for that.
As someone said, this isnt hollywood or a romance novel, chasing a girl will only net you a restraining order.
Its not the end of the world, you are probably young and will have many, many more relationships. If you learn from this one (learn, not beat yourself up, but learn) they will be even better. I suggest buying yourself a copy of "The Mastery of Love" by Don Miguel Ruiz. It will radically change the way you perceive relationships and yourself.
Good luck!