Madeline Cheats on Ed - Big Little Lies
On a show like Big Little Lies, it's safe to say that a lot of relationships are suffering from a lack of truth-telling. But Madeline's betrayal of Ed was by far one of the most heartbreaking lies.
Kevin Lies to Sophie About His Addiction - This Is Us
Kevin and Sophie's marriage originally ended because Kevin was cheating on her. When they reconciled, Kevin started lying about his addiction and realized he couldn't be a good boyfriend to Sophie and could never be a good father to their potential children.
The Truth About Jon was Kept From Both Him and Daenerys - Game of Thrones
Jon's true identity as a Targaryen is kept a secret from everyone in order to protect him. But because Jon didn't know who his family was, he fell for Daenerys Targaryen. Once Jon discovered they were closely related, he no longer wanted to pursue Daenerys, despite his feelings for her. Her death at his hands in the series finale affirmed that they were done for good.
Liza Lies to Josh About Her Age - Younger
Liza's lies caused Josh to break up with her multiple times. First she lied to him, then she was lying to everyone else, and lastly, she cheated on him when he was about to propose.
Justin Lies to Jessica About Her Rape - 13 Reasons Why
It wasn't even the lie that destroyed this relationship as much as Justin willingly letting his best friend rape Jessica. Justin may not have been happy about it, but he didn't put a stop to it and kept it all a secret from her.
Lexa Betrays Clarke at Mount Weather - The 100
After planning to storm Mount Weather for weeks, Clarke and Lexa readied their armies. But unknown to Clarke, Lexa accepted a surrender in return for her own people. She left Clarke and her friends to die, and it was not something that Clarke forgave easily.