Devastated

So, my boyfriend of 3.5 years broke up with me 10 days ago. The sole reason for breakup was we weren't meeting as often. Everything else in the relationship was too perfect to be real. we loved each other, respected each other. cared for each other. I am devastated, because he knew it was difficult for me to meet him as often as he wanted me to meet him. I admit there were a few times I was just lazy to meet him, because it was too much travel. doesn't mean he didn't mean anything to me. He was the world to me.I wanted to marry him. I loved him a lot, I still do. I cannot stop thinking about him. I don't want to move on, while breaking up, he said he found any other girl. This has shattered me. I don't know if he its the truth, or if he said this to just get me move on. I don't know what to do. This is affecting my day to day life. I cannot stop thinking about how I could have saved this. I miss him soo much! Any advice? Thanks in advance. :)