You've got to start rearranging that house so it doesn't look so empty. It being empty serves as a nasty reminder every day and you've got to do something different.
You are completely right about the possible outcomes. And even though, I'm not sure you really believe it, it is going to be ok. But, like Dixie said, we've got to keep moving forward and find things that make us happy while we are waiting. You don't want to be the man you were before and you have made HUGE changes in yourself that you need to be so proud of. But you can't get stuck here, you've got to keep moving. That's how you show your W that your changes are going to stick and that you will continue to be a better man.
You've got this wedding come up. I really want to see you get your head right and be more upbeat. You don't have to be upbeat about the situation. BUT you really should be happy about who you are and what you've learned through this process!!!! That is what I want to see shine through at that wedding.