How to get him back

It’s so warming to see all this love and yearning. This really helped me understand how to move forward rather than move on. Here’s some backstory: My boyfriend and I dated for a year and 2 months. We had the relationship everyone dreamed of, dates every week, and deep conversations that we adored. It was truly perfect. About a few weeks after our one year, he came to me telling me about how he was feeling less love for me due to the absence of connection. After hours of talking and tears, somehow we ended up at the fact that it was just because of his bad day. So i didnt truly take what he said to me seriously. The conversation surrounded the loss of connection, and I told him that I 100% belive that if fixable. But we both ignored that issue and that day. A few weeks ago, he came over to my house and told me he didn’t love me anymore. He knew that it was because of a loss of connection, but couldnt nessasarlily give me more examples or a more detailed explanation. I did all the normal things of begging him to stay and asking endless questions. After the breakup, the sadness comes in waves, and regret is the hardest part of it. I called and texted for the first few days, but told myself to stop, and I understood the " giving him space to miss you" idea. He is now talking to another girl who also just broke up with her boyfriend, and he thinks that they’re going to work out. ive concluded that it’s really hard to miss me or feel my absence when there is someone else there. He doesn’t like the idea of exes getting back together or being friends after the breakup. I’m completely lost as to what to do. Do you have any advice on how to get him back, or just getting him to try? I love him with my whole heart, and I’m willing to put in the effort to try again. hes coming over this Saturday to give each other’s stuff back. Should I give up and try to move on? All the magic getting your ex back knowledge would be helpful!!