I'm so sorry that this has happened to you. My husband dropped his "I love you but I am not in love with you" bomb on me in February too. We're classmates in a way.
I really can't recommend reading Michele's book The Divorce Remedy highly enough to you, especially the section where she talks about spouses falling out of love. It's been such a comfort to me. I still read it weekly, and I was reading it every night!
Find a therapist to talk to, even if your husband won't go with you. It will help. I'm nowhere near fixing my marriage - I just now had my first good weekend since the bomb drop. I have a long, long way to go, and so do you. But take heart. There's a great bunch of folks here to talk to, and they will encourage you to not lose hope.
I am wishing you all the best in this journey none of us ever wanted to take.
