One of the biggest problems we humans have is, not appreciating what we have. It seems the other guy always has something better. That is what often causes breakups. Your guy gets too used to you and he ceases to appreciate you. He forgets how he was attracted to you at that first meeting and how he fought to get that first date with you. Of course, you have to bear a part of the blame because you let yourself become too available and he started taking you for granted.
To wake him up, you will have to give your ex boyfriend the chance to experience his life without you and he will come running back. When guys get together, the stories of their conquests fly like bees around honey. Most of them are exaggerated and some are made up. But your ex boyfriend hears this and wonders if he is missing something. This is why he told you he wanted a break. He really does not want to lose you, but he wants to play around for a while. Of course when he wants you again he expects you to be right there waiting with open arms.
If you go chasing him and telling him you cannot live without him, you are only confirming his believe that you will be waiting. So, you have to cut off all contact with him. This means no phone calls, emails or text messages. You have to disappear from his radar for a few weeks. You have to make him appreciate you again. To do this you need to give your ex boyfriend the chance to experience his life without you. If you are continually around he cannot possibly do that. For the next few weeks you have to forget where he lives, his phone number and email address.
When you cease all contact with him, it will get his attention and he will wonder why you are no longer trying to get him back. It will not be long before he sees that most of the stories of conquest he has been hearing are lies. This will make him think of how foolish he was to have believed them. At the same time he will realize that he might have lost you. The same feelings of panic and desperation you felt at the time of the breakup, will now be his.
Your ex boyfriend will try to call you, but let him leave a message for a couple of days. Then call him back and ask him why he is trying to contact you. Be a little cool to him at first and then gradually treat him like an old friend you had almost forgotten. If he suggests that he would like to meet you for coffee and explain some things, put him off. Tell him you are pretty busy but you will call him back in a few days to arrange a time and place. Do not be to available and he will come running back.