Help! I thought I was doing better

Well, I thought I was doing pretty well for 10 months NC. Today, I hear he is getting married. . . . I know everything about NPD in my head. . . .but it still hurts. These evil people move on in a blink of an eye and people with good intentions suffer long. Does not seem fair. I am going back and forth right now . . . to knowing he'll be the same to her and shaking my head in disgust . . . to moments of it really hurting. . . . Trying to keep talking logical things to myself. Anything that especially helped any of you . . . would so love to hear it now.