How to get an ex back, how to get them talking to you again?

We broke up last Saturday, on our two year anniversary. Well he broke up with me, I just don't understand, because I spent the night at his house and he took me out to breakfast, asked me if i was spending the night again, then broke up with me through a text message. He hasn't talked to me since and i've been pestering him with texts and no reply. I tried to confront him and he wouldnt talk to me. I want SO badly to get him back but he doesn't talk or anything..do i just wait for him? He told me he needs a few months, and he told one of his close girlfriends (shes pregnant) that it will never happen. She told me she thinks it will. I cant move on, im devastated. His mom is good friends with me and keeps texting me, he wont talk to anybody about it. He wont talk to his parents. Everyone thought we were going to be highschool sweethearts, and get married someday..btw we are both 18 and Seniors.