get back together with my ex

I’ve read the other entries and mine sounds so much worse. i know this isn’t a contests and beleive me this isn’t one I’d like to win, anyways. I had been with my ex since I was 16. We had been seeing each other for nearly 6 years. We had been officially enged for a full year, unofficially engaged for 4 years. I graduate from college move back to town and get ready to move in with him. 5 months before our wedding, which is already mostly paid for dress in closet, he gets cold feet and breaks up with me. Doesn’t give me any good reasons. He says stuff like he doesn’t like my parents and other menial excuses. I know I love him & I know he loves me. I know we can make this work & I now he is my soul mate. I know I won’t love anyone the same way. Our relationship was so good before too, we survived two years of being long-distance! Any tips from those who got their ex’s back? I’ve been giving him space.