HOW DO/DID YOU SURVIVE YOUR EX-BOY/GIRLFRIENDS WEDDING DAY?!1

 My ex and I were together for six years until we broke up April last year. I was hoping for a reconciliation because I still love him but he met another woman late last year and their introduction and traditional wedding is this Thursday and Saturday. I didn't even know they were serious like that because he was still a part of my life. He treated me like he still loved me and totally hid his plans from me until the last minute. I am angry and devastated and do not know if I will survive this weekend. Short of killing myself, I don't know what else to do. Please share this with your readers, I need help.