got dumped

My boyfriend called me at work and told me he didn’t want to lead me on any longer and that he didn’t feel the same for me anymore. This was two days after we made plans together. We had made pretty big plans for later this month. It came as a huge shock. We were doing so well or at least I thought. He even said we were doing great but felt he didn’t see a future for us, therefor it was best we ended the relationship where it was. I am really at a loss right now. I don’t know what to think of what to do. It was a short relationship but it had grown into something very important for me. I had completely opened up to him, changed a lot to make the relationship work. And out of no where he says he doesn’t feel the same way about me....