Please know that you are not alone. All of us who have gone through heartbreak with long term marriages feel the same. But I tell myself to act with love and not with fear. Life as such is so short and unpredictable. If you have something good going, let the present love lighten up your soul. I say I will not worry about the unknown for now. I am enjoying being in a relationship with someone and experiencing the small pleasures in life that I was missing for many years.