5 years and his exhaustion

I am a very anxious person and unfortunately it ruined our relationship. A week ago, my boyfriend, with whom we had been together for almost 5 years, said that he did not want to be with me and wanted to break up. I'm broken, badly. He said he wasn't sure if he was going to marry me, that he was tired. He's not interested in how I'm doing, he doesn't want me to touch him, he doesn't want to spend time with me. I'm very tired of this relationship too. We've been living together for the last few days and then I'm going to another city. I understand that I'll get better with time, but for now, the only one I want is him. He said he loves me, but he's lying. After all, when you love, you don't let go.