#3 Edge and Lita (formed backstage in WWE)
Edge-Lita is quite possibly the most controversial couple in WWE history. This relationship formed while the duo was working together, and Lita was still in a relationship with Matt Hardy. Back in 2004-05, Hardy was on hiatus due to an injury and was subsequently released by WWE in April 2005, after he publicly berated Edge and Lita upon discovering that the latter was cheating on him.
Lita-Matt Hardy-Edge was one of the most controversial WWE storylines in history
Lita began getting booed on a regular basis on WWE TV by the fans, who had found out on the web about what she had done in real life. In kayfabe, Lita was a babyface and WWE wasn't happy with her getting booed by the fans. WWE soon turned this real-life situation into an angle. Lita aligned with Edge after turning on Kane, and Matt Hardy soon made his return to feud with the duo. Edge and Matt Hardy traded wins at SummerSlam and Unforgiven. Edge later won a "Loser Leaves RAW Ladder Match" for the Money in the Bank briefcase, which led to Hardy going to SmackDown.