I sent him the wrong text message and know I don't know what he might think?

The text message I was sending was for my friend, I was telling her the things that happened between me and this guy but these were kinda private things and then I receive a text message from him saying excuse me? Then I went to my outbox and I found out I accidentally sent the message to him. All I replied to him was "Nothing my bad" I did`not know what else to tell him and after that message he did not reply and I haven`t texted him again cause I don`t know what he might be thinking now :(. I do know he also told his friends what happened between us even before it happened they knew what was going on but the mistake of the text message did`not happen to him but to me so now I don`t know if to talk to him again or if I do how will he react.