Can I get him back?

My boyfriend broke up with me about a month and a half ago. I was stuck in a terrible job and I had really bad anxiety about it. We didn’t fight or anything we just weren’t clicking like we had used to. When he broke up with me we were both really upset and crying. He said that he’s not trying to turn his back on me and he still cares about me. I believe him because he is not the type of person to say something like that and not mean it. He just wouldn’t say anything at all. We had talked a few times on the phone within the first 3 weeks, but I was crying all 3 times. I did tell him that I quit my job and would be starting a new one in 2 weeks. He was happy for me Then I decided I shouldn’t call him, I should just wait to see if I heard from him. He sent me an email and I answered. We have been emailing back and forth, but I always wait for him to make the first contact. Then one Saturday about 2 weeks ago or so, I called him. He didn’t answer, but he texted me Monday saying he had a busy weekend and told me what he did. He called me on Wednesday (2 days later.)

I was glad to hear from him and I wasn’t crying. I was mostly telling him how happy I was at my new job. Yesterday was my birthday and he called me and left a message (I was eating dinner with my family). On his message he sounded nervous/sad. I don’t really know how to place how he sounded, but he didn’t sound like he normally would. I called back a few hours later, but he didn’t answer. I’m assuming he was out or something. I left a message saying thanks and to call me when he gets a chance. He hasn’t called yet.

We went out for about 2 years, and we were best friends for about 1 year before that. We have known each other for about 5 and a half years.

How can I get him back? I feel terrible about what happened and I am very happy in my job now. I miss him so much. I love him more than anything and would do anything for him. What should I do? Do you think it’s too late? PLEASE HELP!