Ex girlfriend is dating
This probably goes without saying, but one of the best ways to keep busy after a break up is to engage in physical exercise.
You'll never get your ex back until you make her want you again, so there should be no better motivation for you to get ripped and ready.
Because of this, your ex may begin coming to you or calling you up for opinions on things.
Over time, if she thinks you're handling things well, she'll start talking about her lovelife. No matter how your ex chooses to keep in touch with you, learn to roll with it.
The very thought of them together turns your stomach, and the sight of them together might even make you physically ill. even if her heart temporarily belongs to someone else.
Even if she was just bashing her new boyfriend for something he did, suddenly she'll be defending him against what she perceives to be an attack that you started.
Stay neutral, and keep the end goal in sight: winning back your girlfriend.
But rather than let someone you love just slip away, there are ways to fight your way back into your ex-girlfriend's arms. Winning your girlfriend back from another man requires extreme patience and total cool.
It's a lot easier to let your guard down in this type of situation, revealing wave after wave of raw emotions that will very quickly drive her away for good.
Again, you cannot do anything but passively agree with her.