How do I get my girlfriend back?

I love my girlfriend and can’t stop thinking about her, but she hates me and ended our relationship after two years because of constant arguments. I know we had problems, and we struggled to maintain some calm, but it never worked because we are both volatile and hot-headed people. I want her back in my life but so much anger has turned her against me to such an extent that she won’t even take my calls. I am blocked everywhere and she tells common friends that she won’t respond to messages I send her through them. I need advice on how to get her back. I am committed to trying hard and making this work but can’t do anything until she is prepared to change her mind about me and thinks about giving me another chance. What should I do?
There’s nothing you can do if your ex-girlfriend isn’t interested in giving you another chance. You may have the best intentions and may be prepared to make this work, but it can’t without some willingness on her part. If she isn’t going to communicate, you have to accept that there are no reciprocal feelings when it comes to her missing you or wanting you back. You can either wait and hope for a change of heart or move on and accept that you both tried and failed.

My girlfriend has had multiple partners before me, and I worry that she will judge me based on them. This insecurity is preventing me from committing to a long-term relationship with her. How do I get over this fear?
You can try treating her as an individual with a mind and identity of her own, who is choosing to be with you. Everyone has a history, but the present is what matters, along with the choices you both make. If you are insecure about something, talk about it, because assuming it will go away magically isn’t a realistic approach to this. Also, ask yourself if you want her in your life.