I'm 25 & my now ex is 27. We were together for 1 1/2 years. About 2 weeks ago he broke up with me because he didn't think we could be together in the future. I was pressuring him to decide if we could be together forever.. which I now know was completely stupid.. I was acting insecure. We tried to get back together a week ago but I still felt like he was unhappy and I felt like he was being pressured to be with me. Plus he was only calling ever few days and that was hard for me... breaking my heart. So I told him that we should not talk anymore since he was so unsure. He started to cry and I cried. He kept saying that he would miss me and he cared so much about me and at one time he was in love with me and I was the best girlfriend he ever had. He also said that he though us separating was for the BEST... which I disagreed. I told him I was no longer going to call him and it was best for him to no longer call me. He did NOT want to stop talking but it was to hard for me. We haven't talked in 3 days. I want to call him but I know he needs space. Is it possible that he still has feelings for me and one day he might want me bacK?? Is it OK for me to call him in a couple weeks if he has not called?? Am I just wasting my time hoping for him to come back?? What should I do??

He broke up with me because he didn't think we could be together in the future.--- Did he decide this simply because you were ----pressuring him to decide if we could be together forever...
Try and find out if he has his reasons for not wanting a commitment. Maybe if you both care about each other so much and the only problem the two of you have is your wanting him to make a commitment to you for forever you should get back together and just enjoy each other day to day and grow closer and not worry so much.