Complex sentence: The New Breed (Ashe and Curve) were friends for many years and were one of the premier tag teams on the British wrestling scene, however after turning his back on his former best friend, Curve cost Ashe to lose the EWW Championship.
Split into simpler sentences: The New Breed (Ashe and Curve) were friends for many years and were one of the premier tag teams on the British wrestling scene. However, after turning his back on his former best friend, Curve cost Ashe to lose the EWW Championship.