I wish I had the answer to your question....
I have been married for 14 years and am moving in the direction of separation/divorce. We have a 7 year old daughter together, and it's heartwrenching.
What I do know is that you cannot predict the future and the only person you can rely on for happiness is yourself. At the moment, it may seem hard to realize or work toward...I'm still in the muddy stages of it all so it's hard for me to even think about the harsh reality of moving forward, finding happiness within myself and being comfortable in the here and now.
But that is my goal.....and I think it's a good one to try to have!