A woman that is crying and begging and a boyfriend that is angry is not a good combination. The only thing that can result from their meeting is more hurt feelings and more anger. That is why if you want to make him regret losing you, it is necessary to stay away from any contact with your ex for the first few weeks after a breakup. You must face the fact that if he said he needed a break, you will have to give him a break.
This might be the most difficult thing you have ever been asked to do. But the only way to make your ex boyfriend miss you like crazy is to give him time without you. You do not have to be afraid of him forgetting you and finding someone else. Look at yourself, are you going to forget him in just a few weeks? Instead of forgetting him, you will be missing him even more. Your ex is no different than you. If he can forget you that soon, you did not have much of a relationship anyhow.
Since you are afraid of losing him and that is making you desperate to get him back, That should show you how to get him back. You need to make him feel he is losing you. To do this you do not even have to be a good actress. You just need to do two things. Have no contact with your ex boyfriend and enjoy yourself. You might think it will be hard to enjoy yourself, but it won't be if you keep in mind what you are doing is pulling him back to your arms.
To take your mind off your guy as much as possible, you have to stay occupied. Your job or school will keep your days pretty well occupied. It is the evening hours that will be the hardest. So, you need to stay busy with things that interest you. You might have been meaning to take some night classes to improve your job efficiency. Now is a good time to take them. Another great way to fill that time, is doing volunteer work. Helping those less fortunate can build your self esteem and give a sense of accomplishment.
Going out with you friends and having a good time will be a good way of showing your ex boyfriend you can have fun without him. He will be aware of your activities and be impressed. He will also be confused because he thought you would be chasing him and begging him to come back. By having no contact with him, he will feel you do not care and that you are moving out of his reach. Men can get pretty desperate when they think they are losing something that belongs to them. It will not be long before he realizes he misses you like crazy and regrets losing you. That will make him spring into action and your ex boyfriend will be contacting you.