Jack-Quinn Relationship

Jack Harmon and Quinn Fabray have, like all of Jack's relationships, a complex relationship. Jack was, initially, supposed to be a love interest for Quinn in Season Two, but Soulless Warlock introduced the character sooner in the series and changed his mind when he noticed that Jack had more chemistry with Rachel. Still, the relationship has evolved into a friendship that, though not as strong as his with Rachel, allows Jack to be a little more open with those around him. Their couple name is Quack.

Hints in Fanon

 * In numerous one-shots and the multi-chaptered stories, mental versions of Quinn and Rachel serve as Jack's conscience.
 * In Let's Duet, or Songs You Shouldn't Sing in Glee, Quinn seems to be unafraid of Jack, who is in close proxitmity to her throughout the song. The two sang flirtatiously with one another during the song.
 * In The Winner Takes It All, Jack tries to break Puck and Quinn in order to get her for himself. He decided, after some soul searching, she was happier with Puck.

Hints in Fanon Season One

 * In Throwdown, Jack shows a sadness when he learns that Quinn is pregnant, believing her to be different from the other girls. His voiceover even mocks him for always picking the wrong girls. He later shows remorse for the fact he accidentally caused the random locker search that revealed Jacob Ben-Israel's knowledge of the pregnancy.
 * In Quinnie, Did You Know?, he invites her to be his duet partner at a Christmas charity function. They have a reletively good time together, with Quinn showing interest in the fact that Jack is actually being nice to other people. One of the children at the hospital thought they were dating when they saw. They sang The Christmas Song and Mary, Did You Know? in this bonus story.
 * In The Power of Madonna, Rachel and Quinn wake a sleeping Jack. When he sees that his in between the two girls, he remarks, "I'm having that dream again."