Wow i didn't realise it would go to break up...
As far as the what to do when sober thing, you know i go to AA...you know the meetings and meeting sober people like yourself is a real plus mate...you might want to check out a couple if you are going to have more time to yourself...you will probably pick up on some good ideas to occupy your time as well...don't get lonely and don't start isolating cos that is not good for any of us:-)