Comment by EasyCompany

Talking to your co-founder will not help, from what you have written seems like he has a personality issue and this will take a long time to correct......you first have to get him to accept the issue is with him. My advice would be to be smart, put personal feelings and emotions aside and try to engineer a way to get him out of the company or you and the company away from him. Time is so precious, you can't waste it on someone not ready/mature enough for the start up world yet, especially when you have a family.