3: Cheating on Vickie Guerrero
With The Undertaker gone, and the World Heavyweight Championship back in his possession, life was sweet for Edge in mid-2008.
All that remained in his master plan was to marry Vickie Guerrero, cementing the alliance that had worked wonders for him, with hopes of many more years of success.
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With their wedding taking place on SmackDown, it seemed things were going perfectly for Edge, until Triple H showed up.
Revealing that Edge had cheated on Vickie with wedding co-ordinator Alica Fox, Triple H caused a major wrinkle in Edge's plan: as retaliation, Vickie re-instated The Undertaker.
Forcing Edge into a Hell in a Cell match with The Undertaker at SummerSlam that year - which the former lost - Guerrero demonstrated her authority. The pair would patch things up, but their dynamic never truly was the same again.