#4: Chyna and Trish Stratus
The Ninth Wonder of the World Chyna began her WWE career acting as Triple H's valet/bodyguard. When Triple H joined DX, she came along for the ride. Eventually, she broke off on her own and became the first woman to capture the WWE Intercontinental championship. Chyna left the WWE and unfortunately passed away, but she left an indelible mark on the WWE Attitude Era.
Trish Stratus was a Canadian fitness model and competitor who was hired by the WWE in 1997. She spent some time as a valet and manager before transitioning to an in-ring performer. Her athletic ability and willingness to take bumps led to her becoming a multi-time women's champion and Hall of Famer.
Why they didn't like each other: It seems that the bad blood stems from Chyna's side. She apparently thought that Trish Stratus didn't earn her spot through wrestling ability, as quoted here:
“Trish Stratus to me is someone that was hired with no ability and I think she was hired strictly because of her looks. Trish didn’t have to pay her dues and I still think about that and I still think that she should have to."
For her part, Trish has never said anything negative about Chyna on the record. Sadly, any chance of reconciliation is gone because Chyna passed away.