Chedric

Seekerhearts is the het ship between Cedric Diggory and Cho Chang in the Harry Potter series.

Canon
Cedric asked Cho to the Yule Ball, and Cho said yes. The two began dating afterwards, but their relationship ended when Cedric was murdered by Voldemort. Cho later began dating Harry Potter but seemed to feel guilty since she was still mourning Cedric at the time.

Fandom
AO3