How to get him back after this incident?

Last Saturday one of my friend told me that my boyfriend cheated on me with another girl and I confronted him about it without thinking or hearing his side of the story. Before he can tell me anything I yelled at him that it's over between us and kicked his ball really hard. He fell on floor like he couldn't breath or something and I just left him there. But I was stupid for not hearing him out because the next day my friend came clean and told me that it was all a lie. She just wanted us to break up so she can go after him, she told me she felted guilty and decided to tell me the truth. I bitched her out and started crying my eyes out. I try calling my (ex)boyfriend but he wouldn't answer his phone. I left him tons of voice msg and text msg saying I was sorry that I want him back, but he hasn't reply back since than. I've been crying since than for a stupid act I did. I just want my boyfriend back. How can I get him back?