There are some bridges that once you cross, they need to be burned. This prevents one from going back to that same place. I remember a photography student I worked with years ago. When he worked on a piece he never saved versions. He made one image made changes until he was satisfied. I asked him why he didn't save something to go back to in case something didn't work out. He shook his head. He declared, "Life is like a river ever moving onward never back." So many times people are told not to burn their bridges. Save the past, no matter how rotten. Save the relationship, no matter how abusive. Sometimes the bridge needs to be burnt.