Relationships are all about honesty and you can't have a sucessful one without it.
Related: 13 Romances Ruined by Age
There's a difference between a white lie here and there, and a lie so catostrophic that it can change the way you see another person.
Whether or not they managed to reconcile in the end, we created a slideshow below of 17 lies that destroyed relationships.
Troy Lies to Veronica About his Intentions - Veronica Mars
Instead of actually being interested in her, Troy was just using Veronica as a ploy in his drug trafficking scam. But Veronica managed to figure it out and ruin his operation. Troy should have known better than to try and outsmart Veronica Mars.
Rafael Lies to Jane About Michael - Jane the Virgin
When they were giving their relationship another chance, Jane discovered that Rafael reported Michael to the police. The worst part about it was that when Michael accused him, Rafael assured Jane that Michael was lying and was just a horrible person.
Things got ugly, and Jane told Michael she couldn't see him anymore even though she was still in love with him. She was miserable for months, so we can't blame her for being outraged at Rafael.
Ward Lies to Skye About His loyalties - Agents of S.H.I.E.L.D.
Moments after Ward and Skye kiss, Skye realizes that Ward has been an undercover Hydra agent the entire time he was with S.H.I.E.L.D. It was heartbreaking to Skyeward shippers and to Skye, herself.
Beth and Dean Lie to Each Other About Everything - Good Girls
Beth and Dean's entire relationship is a giant lie with some truth mixed in. They both cheated on each other and kept it hidden, and Beth lied to him on and off about her criminal lifestyle.
Emily Lies to Daniel About Their Relationship - Revenge
This relationship was doomed from the start, but there were a few times throughout the series where it seemed as if they might have a chance. But in the end, Emily confessed to Daniel their whole relationship was built on a lie, even though some of it was real to her.
Callie "Lies" to Arizona About Saving her Leg - Grey's Anatomy
Callie promised she wouldn't let the surgeon cut off Arizona's leg, but when it threatened Arizona's life, Callie had to save her. Arizona kept seeing it as a lie because she was so traumatized from everything that happened. Even though Callie stood by her through everything, Arizona could never get over what happened, and she cheated on her with a co-worker.
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.
Leonard Lies to Vanya About Everything - The Umbrella Academy
The entire time that Leonard and Vanya were together, Leonard was hiding that he was a murderer who was trying to get information about Vanya's powers. There were times where it seemed as if he did care about her, but he was too horrible of a person to feel anything for.
Tate Lies to Violet About What He Did to Her Mom - American Horror Story
Once again, this wasn't so much as the lie that did it but the act itself. Tate had sex with Violet's mom when she believed it to be her husband, and impregnated her with the anti-christ.
Garrett Lies to Dina About Her birds - Superstore
When Garrett accidentally let Dina's birds loose, he kept his involvement a secret from her. Even though Dina was heartbroken, Garrett didn't come clean and ended up having sex with her. He felt guilty about it for the rest of the season, but when the truth came out, Dina was ready to make his life a living hell.
Mon El Lies to Kara About His Identity - Supergirl
Mon-El and Kara were finally in a good place when she discovered that Mon-El was the Prince of Daxam. He was ashamed about his past and wanted to keep it hidden from her, but the lie resulted in a short, yet painful breakup between them.
Max Lies to Liz About Rosa's Death - Roswell, New Mexico
When Liz's sister was accidentally killed by Isobel, Max helped cover up the murder and made it look like a car accident. Everyone hated Rosa for a decade because she took two other girls with her, and Liz, understandably, took the revelation hard. She told Max that she never wanted to see him again, but they eventually reconciled.