It's like the kiss of death. It's when your spouse comes to you and says: "I love you, but I'm not in love with you." Is it time to panic when you hear that? Actually it may be.
Your marriage is in trouble. I'm so very sorry for your pain. I know it hurts. I've been there. Those who haven't been through this don't understand the deep ache you feel when the person you love doesn't seem to love you.
The war that is the fight for your marriage has probably already started. It may have been going on for a while now. It may be against yourself, or it may be for the return of your marriage.