Derek + Kate & Jennifer → Heartless

Poor Derek and his evil and heartless girlfriends... It’s sad, that they must die, but I’m glad, we gonna see Kate in next season and in the show Wolf Watch. And Jennifer may return in a later season, too - the creator Jeff Davis contemplate on possible ways she could come back. I must make a video with song Heartless, but I don’t know, which one I should choose. I was thinking about the song by Hinder, too. What do you think about this couples? Which relationship do you prefer or who made him more suffer?