honestly, girlfriend
You should not. Just face it. you need to move on.
You do absolutely nothing about your ex boyfriend considering he has a new girlfriend. If he loved you he would break up with his girlfriend and since he has not then he wants to be with her and you need to accept that. Just because you have broken up with your boyfriend it doesn't mean you can just step back into your ex boyfriend's life.
If they have a girlfriend they do not want you back.
She doesn't. She is just trying to use you.
it depends on the situation. if you really love her then try reconnecting with her, and see how she feels about you. you have to regain her trust and loyalty before you get to serious again.
The Secret Life of the American Teenager - 2008 My Girlfriend's Back 3-10 was released on: USA: 9 August 2010 Japan: 15 November 2012 (internet)
The best revenge is to move forward and have a good life with someone you truly love and who loves you in return. To do that, you need an open heart and mind, which you can't have if you are spending your life on this revenge thing.
I would say its time to find another boyfriend and girlfriend. I appears you can't trust either of them. You do not need this in your life.
You move on in life is what you do. Don't try to go back to her.
You don't, move on, you're young and don't need the drauma. There are PLENTY more chicks out there to drive you crazy for the rest of your life. If she doesn't want you that's her loss... trust me.
It's pretty obvious. She doesn't want to get back with you. Get on with your life and get over her.
Maybe you really loved her. If you really think about her alot you need to try to get back with her.