How Well Do You Know Your Husband, Boyfriend or Best Friend?

Maybe not as well as you think; watch "20/20: The Ultimate Betrayal" tonight at 10 p.m. ET.
0:30 | 03/29/13

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Transcript for How Well Do You Know Your Husband, Boyfriend or Best Friend?
Husband your boyfriend your best friend your FaceBook friends ever wonder what secrets they could be hiding using to take advantage of you. We believe this was happening to -- It was just -- nightmare careful who you trust you feel gullible -- lied about everything. Because what you do know so they -- to straighten. He started texting your friends' -- telling them that you were prostitute can be the ultimate betrayal of a special. 10:9 central on C.

This transcript has been automatically generated and may not be 100% accurate.

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