>If his attitude and behavior aren't suitable for a startup, then should we split immediately? I'm not sure that his attitude is 'unsuitable' for a startup, bu

>If his attitude and behavior aren't suitable for a startup, then should we split immediately? I'm not sure that his attitude is 'unsuitable' for a startup, but it certainly sounds like you have antithetical work philosophies, and that could become an even greater problem down the road. It's possible that he's trying to achieve what feels to him like a good work/life balance. It's also possible that he's decided that the project isn't going anywhere, but feels too committed to jump ship. Either way, it sounds like a heart-to-heart discussion is in order.