You met this guy and dated him a few times. You liked him okay, but you thought it was nothing serious. Then he stopped texting or calling and suddenly you can't get him off your mind. This could be a critical time in your relationship because it will establish who is in control. If you go running after him, your ex boyfriend will know that you are obsessed with him and he can put you on hold and roam free for a while.
The other thing you might do is chase him away for good. By showing yourself to be the needy and clinging type of woman you become unattractive to your ex. On the other hand you might have become very possessive and hinted frequently of a home and family. But, he told you he wasn't ready for that and started distancing himself from you. Whatever made him decide to split, you need to stop chasing him and take a proven way to get your ex back.
If you were crowding him, he will expect you to keep on crowding him. When a man tells a woman he needs space, she usually panics and instead of giving him what he wants, she crowds him even harder. However, if you maintain your dignity and give him the space he wants, he will wonder if he had you figured wrong. He will begin to have thoughts of you with another guy and kick himself for letting you go.
The whole idea is to make him believe that you can do just fine without him. To do that, you have to take yourself completely away from him for a while. No texting or phone calls. Don't try to get mutual friend's to intercede either. You can use mutual friends in a different way though. When you are around them, don't mention your ex boyfriend's name. Act happy and carefree. If they ask if you have another boyfriend, just smile and change the subject.
The message you give your mutual friends will be passed on to him. They will tell your ex how great you look and how happy you seem to be. If he asks them if you are dating, all they can say is they think from your actions that you might be. When he hears all of these things from your mutual friends, if he is still in love with you, it will show him that he had better act fast or risk losing you for good.
All of this is using male psychology to push his hot buttons. Men are very proud creatures and they can't stand being ignored, especially by an ex girlfriend. You are also issuing a challenge to him and men can't resist a challenge. By taking a few proven steps, you have got inside his head and affected his thinking. You are the one now in control and it will be the job of your ex boyfriend to get you back. He will be the one who is obsessed and soon will be chasing you again.