Don’t know what to do

Hi. My boyfriend and I have recently broken up. It wasn’t a mutual decision, it was purely him. He said he hadn’t been happy, but wasn’t sure why. His family and mine were both surprised. We were so in sync and had so many things in common. We both said it was the happiest we’d ever been. The only thing that held us back was I have a teenage child and I have her half the time. We couldn’t always do holidays, mini trips because of my child. He loves to travel, but with childcare and money it wasn’t always possible. He loved my child very much and it was reciprocated. He could be quite lazy at times, but I love him nonetheless (just one of those quirks that he has). He walked out one day and didn’t contact me. I eventually contacted him and he said he wasn’t happy, but couldn’t really say why. He said his family said he was crazy, my family were completely shocked. He came to collect his things two weeks later and he was distraught. Crying, kept saying sorry for what he was doing and wanted us to be friends. At the time I said it was too hard for me and after chatting for a couple of hours he left. It’s been a month and we’ve chatted a couple of times. I’ve messaged him like a bit of a nutcase and asked if he could ever see us being together again. He said he didn’t think so as he wants to travel and one day live abroad. He said that he just couldn’t see that happening. What he doesn’t seem to realise is that I would follow him anywhere, but right now I have to see my child to college and then university in a couple of years. She will move away and there will be nothing keeping me grounded here. I can definitely see us travelling and living abroad together. I want to give him time and space, but it’s so hard not to contact him after seeing him and speaking to him everyday. He’s in the armed forces and I’ve spent time away from him before but he was always coming back. I’ve stood by him through health issues and mental health issues. I don’t really know what to do! I guess giving him time and space is the only thing to do, but I’m so scared I’ll never get this happiness back. I’ve been in an extremely toxic relationship in the past and this relationship now is the best I’ve ever felt with anyone, any of my exes before. Definitely love of my life