Hmmm123

My marriage has been dying for several years. We've become roommates, raising two children (9,14). Communication is limited to essentials. My problem is that I don't want to initiate separation/divorce, but would gladly go through with either one at his suggestion. I am not certain where he stands on 'us', but can't imagine his happiness level can be much higher than mine....How do you subtly get a spouse to decide to leave?