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26 Controversial TV Cheating Plots That Almost Caused People To Stop Watching Their Favorite Shows

"Shoulda known a cheater stays a cheater."

We recently asked the BuzzFeed Community to tell us which TV cheating plots made them really angry. Here are some of their responses:

Spoilers ahead!

1. First, when Blaine cheated on Kurt on Glee.

Blaine tells Kurt he needed him and was lonely, Kurt: "You don't think that I've been lonely?"

2. When Alex left Jo for Izzie on Grey's Anatomy.

Alex's note to Jo: "I love you, but I'm in love with Izzie"

3. When Rory and Dean had an affair while he was married on Gilmore Girls.

Lorelai to Rory: "He's not your Dean, he's Lindsay's Dean, you're the other woman"

4. When Archie and Betty kissed and had an emotional affair while they were still dating Veronica and Jughead on Riverdale.

Betty tells Archie she loves Jughead and knows he loves Veronica, so it has to end between them

5. When Arizona cheated on Callie with Lauren after the plane crash on Grey's Anatomy.

6. When Carrie cheated on Aidan with Big on Sex and the City.

7. When Owen cheated on Cristina after she had an abortion on Grey's Anatomy.

Owen tells Cristina he's not cheating on her with Emily but that he did cheat on her

8. When Dylan cheated on Brenda with Kelly on Beverly Hills, 90210.

Brenda sees Dylan and Kelly kissing: "Oh my god"

9. When Callie caught her boyfriend AJ kissing another girl on The Fosters.

Callie watches from a distance as AJ and girl kiss on basketball court

10. When Ted cheated on Victoria with Robin while she was away in Europe on How I Met Your Mother.

Ted and Robin kissing and about to hook up

11. When Andie cheated on Pacey while she was away at the treatment center on Dawson's Creek.

Andie says she knew immediately after hooking up with Marc that it was wrong

12. When Omar cheated on Ander with his sister's boyfriend, all while Ander was going through chemotherapy on Elite.

Omar asks Malick to hook up, "Ander isn't here"

13. When Lucas cheated on Brooke with Peyton twice on One Tree Hill.

Lucas lets it slip that he and Peyton kissed again during the school shooting

14. When Hyde slept with someone else just because he thought Jackie still had feelings for Kelso on That '70s Show.

15. When Rory and Logan had an affair while she had a boyfriend and he was engaged on Gilmore Girls: A Year in the Life.

Lorelai says she thought Logan was engaged to a French heiress and Rory casually replies that he is

16. When Xander and Willow cheated on Cordelia and Oz with each other on Buffy the Vampire Slayer.

Xander and Willow make out as they believe they're about to die, Cordelia and Oz walk in on them

17. When Wade cheated on Zoe on Hart of Dixie.

Wade says it meant nothing and asks Zoe to please say something, she responds, "What do you want me to say?"

18. When Cory had a thing with another girl on the ski lodge trip on Boy Meets World.

Cory and Linda kiss

19. When Emily and Gabriel developed feelings for each other and eventually hooked up even though Gabriel had been dating her friend Camille on Emily in Paris.

20. When Craig cheated on Ashley with Manny on Degrassi: The Next Generation.

Ashley confronts Craig after finding out he slept with Manny

21. When Serena slept with two of Blair's boyfriends on Gossip Girl.

22. When Jane cheated on Spinner with Declan on Degrassi: The Next Generation.

Jane kisses Declan

23. When Zeek had an affair on Parenthood.

Camille says Zeek cheated because he looked at her and couldn't see her anymore

24. When Spencer cheated on Teddy on Good Luck Charlie.

25. When Madeline cheated on Ed with Joseph on Big Little Lies.

Madeline says her cheating was about her, not Ed

26. And finally, the whole "We were on a BREAK" mess between Ross and Rachel on Friends.

Note: Submissions have been edited for length and clarity.