Just so I have this clear:
You love a girl.
She left because you took your anger out on her, were insecure, and treated her like a posession.
You want her true love , want her to truly love you , and want said love to not be forced .
Perhaps the issue is in translating this all to English, but I'm not seeing a way for you to make someone love you without it being forced . In which case, did they truly ever love you? Perhaps, but perhaps you'll always be questioning it, especially since you admitted to being insecure. It's bound to pop up into your mind, and then this whole cycle will repeat itself.
So here's my advice, which you won't take because you're only seeing what you want to see:
For the next month: Don't go out of your way to approach, call, talk, look, etc. any aspect of her or her life. This is so that she will see that you're respecting her wishes. During this time, work on you . Fix yourself up emotionally, mentally, etc. Meditate for 15 minutes twice a day (before and after bed) to clear all your stray thoughts out of your head.
If you've done this right, you should have stopped being obsessed with having her , and see that you really are objectifying her. Noone really wants that, even if a woman says she wants to be the center of someone's world. People need to breathe.
Once she sees that, she'll more than likely come to you and talk. If she doesn't, then just walk over to her one day when she's eating lunch and ask if she has a few minutes to talk. If she doesn't, don't make a big deal out of it. Accept her response and walk away without looking like she slapped you.
You need to understand, the more you hold onto something, the more you end up squeezing the life out of it. There's a saying, " If you love something, set it free. If it doesn't come back, it wasn't yours to begin with. "