Hi Jane,
You are not alone. I am going through the same thing right now. After 17 years together (one yr married) and a child, I was blind sided a month ago when he said he didn’t know if he loved me anymore and wasn’t in love with me. I had no idea it was coming, we were the most solid couple I knew and he ripped my world out from under me without any regard. Within 3 days he confessed to another woman as well. After so long together he isn’t even willing to try and make it work. Just about broke me to be honest. I am still reeling and feel just like you – terrified. It is going to be a process. One that is going to hurt like crazy, but one that we will make it through. You’re not alone!