How do we get our friendship back to normal
A few days ago me and my ex were sitting on the bus together. We were just talking when all of a sudden she put her arm on my shoulder. Not knowing what to do, I decided to put my arm on hers. She said she wanted to do something but didn't know how the other person would react. I told her I had a gut feeling that they wouldn't care. For the past couple days coming close to her stop we would just stare at each other in an awkward silence. That same thing was happening today. Just a few minutes from her stop she said "you know where this is going right?" So I replied, "I have a pretty good idea." Right before we came to her stop she asked me if it would always come down to this. We both started to lean in and the next thing you know we were kissing. Ever since that evening any conversation we've had has been short and awkward and that's only on the rare occasion that we actually talk to each other. We don't sit by each other or anything. Could somebody tell me how to fix our friendship?