What will you do if you see your ex in public?

I'll hug him because he used to be a big, if not the biggest part of my life. He will always be someone important and shall my friends or family try to trash him or badmuth him, i'll simply say: "He's a man I used to love. In place of that love, I'd like to give him the respect that is due to him so please please respect him not for wut he is today or wut he has done to me but see him singularly for the man he used to be when he was at the peak of his love for me. Just tha way I hope he and his friends and family will treat me today.