Given what you described about your wife's behavior over her business, it seems divorce is truly for the best. You will be OK in the end. Yes, it will be hard. Yes, it will hurt. But then the difficulty will ease up and the hurt will dissipate. Then you will feel better and you can live your life on your terms and be happy. My only advice is to communicate a LOT to your daughter through the process and give her as much love and attention as you can - hold her hand, hug her, tell her how much you both love her and that none of it is her fault. It's between you and your wife only, and has nothing to do with her. That's my two cents. Don't worry. It's going to be OK.