When will my ex wake up and come back to me?

I have been in a long-distance relationship with my boyfriend for 3 years. He came out and visited me for 2 and a half weeks this summer, and I spent almost a week out with his family a few weeks after. We have definitely had our share of ups and downs, but generally everything was beyond perfect up until a month or so ago. He started getting stressed about work, and other factors. Because of the physical distance, emotional distances began to appear even though there was nothing wrong with our relationship. He started getting distant, and was pushing me away. I tried reaching out to him but he didn’t feel any of it. Since then he developed feelings for another person. After prying it out of him he finally told me.

We tried to handle this in a mature way. I didn’t get angry, I was very understanding. We spent much more time talking on the phone, etc. I felt like we were getting back on track. After a few days I asked him how he was feeling. He said things between us were much better but he still had strong feelings for her.. I started getting kind of impatient, and was tired of being on the backburner. I told him he needed to make a decision. We would have moved into an apartment together in about 8 months and then the distance would no longer be an issue.

I thought we were working things out until yesterday. To make a long story short, we broke up. I know that it is pure infatuation with this girl, and nothing more. He told me that she was my opposite and that was what was attracting him to her… I know how it’s going to go. She is like his drug high. And it will wear off when he sees they don’t have chemistry and don’t have anything in common.. he will get bored quickly.

In the meantime I am just trying to keep myself busy. If he is the guy I know he his… this new space he has will clear his mind, and he will come back to me.

What are your opinions? I don’t know what to do… I know that I AM helpless and there is nothing I can do about it. I do not call him. I do not instant message him. I do not try to communicate. What do you think the chances are of him WAKING UP? How long do you think it will take?

Please… I never knew how weak I was emotionally.. this hurts more than anything I have ever felt…